Inserts

full array of STI taps, gages and tang break-off tools. For production runs, prototype work, salvage and repair, Heli-Coil offers a range of installat...

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Inserts

Heli-Coil Inserts have evolved since their inception in the 1930’s and now include the complete range of both tanged and tangless free running and screw-locking wire insert systems. Today Heli-Coil delivers a vast array of high quality inserts and installation tools designed to meet the needs of the industry’s ever demanding designers and manufacturers. Inserts are available in a variety of materials and special coatings. With Heli-Coil threads, tapped holes are strengthened and thread life is dramatically increased.

Heli-Coil Inserts are The Original.

Manual Tools Heli-Coil offers a complete line of tooling together with a full array of STI taps, gages and tang break-off tools. For production runs, prototype work, salvage and repair, Heli-Coil offers a range of installation and extraction tools for both tanged and tangless inserts to complete the needs of your application.

Power Tools For higher volume production, we offer both electronic and pneumatic power inserting tools. Heli-Coil power tools can be adapted to assembly stations, rotary tables and transfer lines for rapid installation. Our application engineers are always available to assist in installation techniques and special tooling.

Quality Our strict quality programs ensure that we meet the latest industry standards of ISO/TS 16949:2002, ISO 14001:2004, AS/EN/JISQ9100 Rev C and ISO 9001:2008. A comprehensive Business Management System elevates our quality levels well above our competitors.

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Table of Contents

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Insert Information & Specifications Introduction to Heli-Coil Products................................................................................................ Types of Inserts, Tanged and Tangless........................................................................................... Tanged and Tangless Inserts, Features & Benefits ......................................................................... Locking Inserts, Feature and Benefits............................................................................................ » Screw-Locking Inserts.................................................................................................. » Hi-Torque Inserts......................................................................................................... » Stud-Lock Inserts......................................................................................................... Industry Standards and Specifications........................................................................................... Coatings & Platings...................................................................................................................... Insert Materials............................................................................................................................ Torque Data for Screw-Locking Inserts.......................................................................................... Design Data and Guidelines......................................................................................................... » Assembly Strength » Corrosion Protection Tanged Inserts, Part Numbers and Specifications, inch & metric..................................................... Tangless Inserts, Part Numbers and Specifications, inch................................................................. Tangless Inserts, Part Numbers and Specifications, metric..............................................................

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2 4 . 5 . 6 . 6 . 6 . 6 . 7 . 8 . 9 . 10 . 11

. 12-13 . 14 . 15

Insert Installation Assembly Design.......................................................................................................................... Engineering Data......................................................................................................................... » Drilling, Countersinking, Tapping, Gaging Drilling Data, inch & metric.......................................................................................................... Tapping Data, inch & metric......................................................................................................... STI Tap Part Numbers, inch........................................................................................................... STI Tap Dimensions, inch.............................................................................................................. STI Tap Part Numbers, metric........................................................................................................ STI Tap Dimensions, metric........................................................................................................... Gages, inch.................................................................................................................................. Gages, metric...............................................................................................................................

. 16 . 17 . 18-19 . 20-21 . 22 . 23 . 24 25 . 26 . 27

Installation Tooling

The descriptions, specifications and other claims made with respect to the products featured in this catalog are made as of the date of printing. STANLEY Engineered Fastening retains the right to discontinue production or make improvements or other changes to any of its products without notice.

Types of Tools, Tool Service........................................................................................................... Hand Installation Tools................................................................................................................. Power Installation Tools, inch & metric.......................................................................................... Tang Removal Tools...................................................................................................................... Tangless Tools, inch...................................................................................................................... Tangless Tools, metric................................................................................................................... Tool & Tap Selection Guide, inch................................................................................................... Tool & Tap Selection Guide, metric................................................................................................ Thread Repair Kits and Master Sets..............................................................................................

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. 28 . 29 . 30-32 . 33 . 34 . 35 . 36 37 38

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Screw Thread Inserts Types of Inserts There are two styles of Heli-Coil inserts. The standard or FREE RUNNING insert which provides a smooth free-running thread; and SCREW-LOCKING which provides self-locking torque on the male member by a series of “chords” on one or more of the insert coils. They are both available in Tanged and Tangless; Inch and Metric series. (Note: Inch series Screw-Locking inserts are dyed red for identification.)

Free Running Insert

Screw-Locking Insert

Heli-Coil inserts are precision formed coils of extremely hard, diamond shaped 304 stainless steel. When installed into an STI tapped hole, they provide permanent conventional 60° internal screw threads. This assembled insert accommodates any standard bolt or screw as per MIL-S-7742 and AS8879 (UNJ controlled root radius). Inserts can be custom made in all materials listed on p. 9. Heli-Coil tanged inserts are larger in diameter before installation than the tapped hole. During installation, the inserting tool applies torque to the tang reducing the diameter of the leading coil permitting it to enter the tapped thread. After installation, each high tensile coil of the insert expands outward with a spring-like action permanently anchoring the insert.

Diamond Shaped Wire

Illustration of the Retention Principle

Tanged Size Range: » UNC #1 through 1-1/2 » Metric Coarse M2 through M39

» UNF #2 through 1-1/2 » Metric Fine M8 through M39

Inserts are also available in UNEF, UNS, 8UN, 12UN, 16UN, Spark Plug and Pipe Thread.

Tangless inserts eliminate the need for tang break-off and retrieval. Since no loose tangs are left behind, they become the solution when Foreign Object Debris (FOD) cannot be present in critical applications. Loose tangs can potentially cause damage and result in the need for costly repairs. Tangless inserts are manufactured using the same materials as standard inserts and provide the same superior performance characteristics. They are available in Free Running and Screw-Locking and in inch and metric series, coarse and fine.

Tangless Size Range: Tangless Free Running Insert

» UNC #2 through 1/4 » UNF #10 and 1/4 » Metric Coarse M2.5 through M6

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Screw Thread Inserts

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Features & Benefits Heli-Coil inserts provide a positive means for protecting and strengthening tapped threads in any material. The unique design features of the insert offer many benefits. Stronger Assemblies Tapped threads are strengthened because the inherent flexibility of the insert provides a more balanced distribution of dynamic and static loads throughout the length of thread engagement. This flexibility also compensates for variation in lead and angle error allowing each coil to carry its share of the load. No Thread Wear Thread life is dramatically increased even after repeated assembly and disassembly because the insert hardness and surface finish practically eliminate erosion of the thread form due to frictional wear. Corrosion Resistance Under normal environmental conditions, Heli-Coil inserts minimize galvanic action within the threaded assembly because of their superior corrosion resistance. Design Flexibility Bolt tensile strength can be balanced against parent material shear strength, assuring bolt failure rather than parent material damage. Five insert lengths are available in each thread size. Eliminate Stress Virtually no stress is introduced into the parent material because there is no staking, locking, swaging or keying in place – the outward spring-like action of the insert holds it in place. Minimize Space & Weight Heli-Coil inserts allow the use of smaller bosses and flanges than any other insert. Heli-Coil inserts can generally be incorporated into existing designs, where no other provision has been made for an insert, without increasing boss size. Minimize Total Cost Cost savings abound. Lower insert cost, lower installation cost and Heli-Coil inserts provide design flexibility by allowing a wide choice of parent materials while maintaining maximum threaded assembly strength. True Clamping Torque Maximum clamping action and bolt tension are assured with minimum wrench torque because of the mirror-smooth surface finish of Heli-Coil inserts. Wide Temperature Range Heli-Coil stainless steel inserts can be used in temperatures ranging from -320°F to +800°F.

High Volume Production Heli-Coil inserts are available mounted on plastic strips and wound onto reels (500 or 1000 inserts per reel). With power installation tooling, use of strip feed inserts will substantially increase installation rates by minimizing handling. Universal Acceptance Heli-Coil Standard and Screw-Locking Inserts are the original – and have an extensive background of tension, torque, shear, vibration and fatigue tests conducted by American industry’s leading companies as well as the U.S. Military. Successful applications in the fields of aviation, electronics, industrial, automotive and military equipment provide a wealth of experience and confidence in the performance and reliability of Heli-Coil inserts. Custom Design Services In addition to the benefits listed above, Heli-Coil provides a wide range of support to solve fastening problems. This design catalog is one of them. The following pages are presented in a manner to make it easy to “design-in” Heli-Coil inserts to take advantage of the extraordinary benefits they provide. Additionally, our Sales Engineers, Applications Engineers and Design Engineers are available for consultation for specific designs. When the product gets to the manufacturing phase, our extensive experience in production tooling and installation techniques ensures that you can indeed make your product better with Heli-Coil inserts.

Quality & Reliability Stringent Quality Assurance and Engineering Standards are rigidly enforced in all phases of the manufacturing process. This assures integrity of your product design.

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Screw-Locking Inserts

Locking Inserts Heli-Coil offers three types of Locking Inserts for multiple applications.

Screw-Locking Inserts » A resilient locking mechanism that grips the bolt and prevents it from loosening under vibration or impact. » Repeated assembly and disassembly without appreciable loss of positive self-locking torque. » Savings in space, weight and money, through the elimination of lock wiring, lock nuts, lock washers, chemical compounds, plastic pellets/patches and/or other locking mechanisms. » Inch inserts dyed red for easy identification.

The locking action is achieved by one or more of the insert coils having a series of straight segments or “chords”.

» Meets NASM8846, MA1565, NASM21209, MA3329, MA3330, MA3331.

Hi-Torque Inserts » Similar to Screw-Locking but with higher prevailing torque which compensates for reduced friction in highly lubricated applications. » Ideal for higher vibration applications. » Approximate 40% increase in prevailing torque levels. » Available in #10 through 3/8" UNF only. » Meets AS1394, AS3094, AS3095, AS3096, AS3097.

When the bolt enters the “grip” coil, these chordal segments flex outward, creating pressure on the bolt. The pressure is exerted between the flanks of the bolt thread to establish an extensive positive and consistent self-locking torque over more cycles than any other prevailing torque mechanism.

Stud-Lock Inserts » Highest prevailing torque insert available. » Enables use of threaded rod for space-saving stud applications. » Allows for any class fit of threaded rod. » Eliminates inconsistencies caused by interference-fit studs. » Available for both straight and step studs, #10 through 1/2" UNC and UNF. » Meets AS1229, AS3080, AS3081, AS3082, AS3083.

Locking Features & Benefits

Locks Adjustment Screws. This simple design allows permanent, positive adjustment of screws in any position. Secure against vibration or impact.

Inaccessible or Miniaturized Assemblies. Heli-Coil Screw-Locking inserts permit the installation of the lock from the front or top. No blind fumbling for assembly of lock washers or lock nuts behind or underneath.

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Lock Set Screws. Positively locks assembly against loosening at desired adjustment. Protects threads against stripping under high torque. Permits use of light housing materials.

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Industry Standards

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Industry Standards Heli-Coil inserts and tooling comply with the following Standards and Specifications: NASM122076 thru NASM122275 Insert, corrosion resistant Helical Coil Coarse Thread (Inch Series) NASM124651 thru NASM124850 Insert, corrosion resistant Helical Coil Fine Thread (Inch Series)

NAS0276 Inserts, Screw Thread, Helical Coil, Free Running and Screw-Locking (Metric Series) FED-STD-H28 Screw Thread Standards for Federal Services AS3094A; AS3094 thru AS3097

NASM21209 Insert, Screw Thread, Self Locking (Inch Series)

AS1229B; AS3080 thru AS3083 Special Locking Torque Inserts

NASM33537 Insert, Standard Dimensions, Assembly (Inch Series)

ASME B18.29.1 Insert, Screw Thread, Helical Coil (Inch Series)

NASM8846 Insert, Screw Thread, Helical Coil (Inch Series)

ASME B18.29.2M-2005 Helical Coil Screw Thread Inserts, Free Running and Screw Locking (Metric Series)

MA1565 Insert, Screw Thread, Helical Coil (Metric Series) MA1567 Insert, Screw Thread, Helical Coil, Standard Dimensions, Assembly (Metric Series) MA3279, 3280, 3281 Insert, Screw Thread, Helical Coil, Free Running (Metric Series)

AGS3600-3699 Insert, Screw Thread, Screw-Locking, Helical Coil, Cadmium Plated (Inch Series) AGS4677 Series Insert, Screw Thread, Screw-Locking, Helical Coil, Cadmium Plated (Metric Series) AS6733 Inserts, Wire Thread, Unplated (UNF)

MA3329, 3330, 3331 Insert, Screw thread, Helical Coil, Screw-Locking (Metric Series)

AS6734 Inserts, Wire Thread, Unplated (UNC)

AS59158 Tools for inserting and extracting Helical Coil Inserts

AS8455 Inserts, Wire Thread, Cadmium Plated (UNF)

NAS1130 Inserts, Screw Thread, Helical Coil, Free Running and Screw-Locking (Inch Series)

AS8456 Inserts, Wire Thread, Cadmium Plated (UNC)

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Insert Coatings & Plating

Coatings/Plating

Benefits

Primer-Free® II

» » » » » » » » »



Material Spec: None Color: Matte black

Dry Film Lubricant

» » » »



Material Spec: AS5272 Color: Gray

Silver Plating

» Recommended to reduce galling of threads at high temperatures » For use up to 1200°F » Highly recommended with inserts made from Inconel X-750



Material Spec: QQ-S-365 Color: Silver white



» For Military specification purposes only » Not recommended for new design due to its toxic nature

Cadmium Plating

Material Spec: QQ-P-416 Type II Color: Iridescent yellow - Free-Running Color: Olive drab - Screw-Locking

Color Coding

» Facilitates verification of insert installation » Allows for quick identification of similar size inserts



Color: Available in blue, green, red and black*

RoHS compliant; contains no chromates Eliminates need for zinc primers and messy epoxies Provides uniform top to bottom coverage Provides enhanced visibility in the assembly Prevents galvanic corrosion between insert and parent material Eliminates locking torque issues associated with primers Eliminates clogging/fouling of installation tools Improves installation productivity Provides additional lubrication facilitating insert installation

Provides additional lubrication in high friction applications High temperature resistance (400°F) Highly recommended with Heli-Coil Screw-Locking inserts Mildly corrosion resistant

(*) Note: All Heli-Coil Inch Screw-Locking inserts are supplied with a red coloring in accordance with NASM21209.

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Insert Materials

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Heli-Coil inserts are available in a wide choice of materials to suit specific application needs. Contact Heli-Coil Applications Engineering to determine the correct material for your application.

304 Stainless Steel » Standard, general purpose material

Material Spec: AS7245 Temperature range: up to 800°F

» Ideal for original equipment applications, repair, and overhaul

Tensile: 200,000 – 250,000 PSI

» Stocked in most sizes

Corrosion resistance: Moderate

Nitronic 60® » » » »

Superb gall resistance Compatible with stainless steel screws Ideal for use in vacuum environments Requires no additional coatings or plating » Particle free » Non-magnetic

Inconel X-750 » Used in areas exposed to high temperatures » Typical uses: gas turbine engines, nuclear applications, well drilling » Non-magnetic

Phosphor Bronze

Hardness: RHc 43-50 Magnetic Permeability: 2-10 G/o (depending on wire size)

Material Spec: UNS S21800 Temperature range: up to 500°F Tensile: 200,000 PSI Hardness: RHc 43-50 Corrosion resistance: Moderate Magnetic Permeability: <1 G/o

Material Spec: AS7246 Temperature range: up to 1,000°F Tensile: 200,000 PSI Hardness: RHc 43-50 Corrosion resistance: High Magnetic Permeability: <1 G/o

» Ideal for salt water applications

Material Spec: ASTM B159-01 per UNS C51000 Grade A

» Non-magnetic

Temperature range: up to 250°F

» Excellent electrical conductivity

Tensile: 140,000 PSI Hardness: HRB 95 Corrosion resistance: High Magnetic Permeability: <1 G/o

Titanium » Superior strength-to-weight ratio » Corrosion resistant » Excellent low temperature stability

Material Spec: AMS 4957 & AMS 4958A Temperature range: up to 600°F Tensile: 150,000 to 220,000 PSI Hardness: RHc 35-43 Corrosion resistance: High Magnetic Permeability: Non-magnetic

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Screw-Locking Torque Data

Heli-Coil Screw-Locking inserts meet the locking torque value of Tables I and II shown below. The values shown conform to NASM8846 (inch series) or MA1565 (metric series) requirement.

IMPORTANT NOTE: When using heat-treated steel screws or stainless steel screws with a Screw-Locking insert, an anti-seize compound MUST be applied to the screw or insert to minimize galling and maximize cycle life. Compounds include Primer Free® II coating or Dry Film Lubricant (Molybdenum Disulfide) to improve the wear life of the screws. In lieu of coatings, Heli-Coil Gall Resistant inserts are highly recommended.

TABLE I. HELI-COIL INSERT LOCKING TORQUE – INCH

TABLE II. HELI-COIL INSERT LOCKING TORQUE – METRIC

Nominal Max. Min. Thread Locking Locking Torque Size Torque 15th Cycle UNIFIED COARSE THREAD (UNC)

Nominal Thread Size

Max. Locking Torque

Min. Locking Torque 15th Cycle (N.m)

METRIC COARSE

1 (.073)-64

15 oz-in

2 oz-in

M2x0.4

0.12

0.003

2 (.086)-56

20 oz-in

3 oz-in

M2.2x0.45

0.14

0.02

3 (.099)-48

32 oz-in

7 oz-in

M2.5x0.45

0.22

0.06

4 (.112)-40

48 oz-in

10 oz-in

M3x0.5

0.44

0.10

5 (.125)-40

75 oz-in

13 oz-in

M3.5x0.6

0.68

0.12

6 (.138)-32

6 lb-in

1.0 lb-in

M4x0.7

0.90

0.16

8 (.164)-32

9 lb-in

1.5 lb-in

M5x0.8

1.60

0.30

10 (.190)-24

13 lb-in

2.0 lb-in

M6x1

3.00

0.40

12 (.216)-24*

24 lb-in

3.0 lb-in

M7x1

4.40

0.60

1/4 (.2500)-20

30 lb-in

4.5 lb-in

M8x1.25

6.00

0.80

5/16 (.3125)-18

60 lb-in

7.5 lb-in

M10x1.5

10.00

1.40

3/8 (.3750)-16

80 lb-in

12.0 lb-in

M12x1.75

15.00

2.20

7/16 (.4375)-14

100 lb-in

16.5 lb-in

M14x2

23.00

3.00

1/2 (.5000)-13

150 lb-in

24.0 lb-in

M16x2

32.00

4.20

9/16 (.5625)-12

200 lb-in

30.0 lb-in

M18x2.5

42.00

5.50

5/8 (.6250)-11

300 lb-in

40.0 lb-in

M20x2.5

54.00

7.00

3/4 (.7500)-10

400 lb-in

60.0 lb-in

M22x2.5

70.00

9.00

7/8 (.8750)-9

600 lb-in

82.0 lb-in

M24x3

80.00

11.00

1 (1.000)-8

800 lb-in

110.0 lb-in

M27x3

95.00

12.00

1-1/8 (1.1250)-7

900 lb-in

137.0 lb-in

M30x3.5

110.00

14.00

1-1/4 (1.2500)-7

1000 lb-in

165.0 lb-in

M33x3.5

125.00

16.00

1-3/8 (1.3750)-6

1150 lb-in

185.0 lb-in

M36x4

140.00

18.00

1-1/2 (1.5000)-6

1350 lb-in

210.0 lb-in

M39x4

150.00

20.00

METRIC FINE

UNIFIED FINE THREAD (UNF) 2 (.086)-64

20 oz-in

3 oz-in

M8x1

6.00

0.80

3 (.099)-56

32 oz-in

7 oz-in

M10x1

10.00

1.40

4 (.112)-48

48 oz-in

10 oz-in

M10x1.25

10.00

1.40

6 (.138)-40

6 lb-in

1.0 lb-in

M12x1.25

15.00

2.20

8 (.164)-36

9 lb-in

1.5 lb-in

M12x1.5

15.00

2.20

10 (.190)-32

13 lb-in

2.0 lb-in

M14x1.5

23.00

3.00

1/4 (.2500)-28

30 lb-in

3.5 lb-in

M16x1.5

32.00

4.20

5/16 (.3125)-24

60 lb-in

6.5 lb-in

M18x1.5

42.00

5.50

3/8 (.3750)-24

80 lb-in

9.5 lb-in

M20x1.5

54.00

7.00

7/16 (.4375)-20

100 lb-in

14.0 lb-in

M22x1.5

70.00

9.00

1/2 (.5000)-20

150 lb-in

18.0 lb-in

M18x2

42.00

5.50

9/16 (.5625)-18

200 lb-in

24.0 lb-in

M20x2

54.00

7.00

5/8 (.6250)-18

300 lb-in

32.0 lb-in

M22x2

70.00

9.00

3/4 (.7500)-16

400 lb-in

50.0 lb-in

M24x2

80.00

11.00

7/8 (.8750)-14

600 lb-in

70.0 lb-in

M27x2

95.00

12.00

1 (1.000)-14*

800 lb-in

92.0 lb-in

M30x2

110.00

14.00

1 (1.000)-12

800 lb-in

90.0 lb-in

M33x2

125.00

16.00

1-1/8 (1.1250)-12

900 lb-in

117.0 lb-in

M36x2

140.00

18.00

1-1/4 (1.2500)-12

1000 lb-in

143.0 lb-in

M39x2

150.00

20.00

1-3/8 (1.3750)-12

1150 lb-in

165.0 lb-in

M36x3

140.00

18.00

1-1/2 (1.5000)-12

1350 lb-in

190.0 lb-in

M39x3

150.00

20.00

* These sizes are not included in NASM8846. Torque values shown are interpolated from sizes that are included. All torque data derived for stainless inserts only per NASM 8846 which applies to stainless steel, stainless with cadmium plating or with dry film lube.

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Design Data Assembly Strength

Guidelines for use of table:

Heli-Coil offers maximum design flexibility while adhering to conservative engineering practice allowing use of Heli-Coil inserts in virtually any application or material. Five lengths of inserts are available. In this design manual, the lengths are listed as multiples of the nominal thread diameter of the screw; 1, 1-½, 2, 2-½, and 3. This choice of insert length balances the bolt tensile strength against the shear strength of the parent material. This allows for the design of assemblies where the bolt will fail before the parent material. Tables III and IV below show the length of insert to be used with different combinations of bolts and parent materials.

1. When the parent material shear strength falls between two listed values, use the lower of the two values.

Shear strength of parent material (PSI) (Alum., Mag., Steel)

10,000 15,000 20,000 25,000 30,000 40,000 50,000 Shear strength of parent material MPa (megapascals) (Alum., Mag., Steel)

70 100 150 200 250 300 350

TABLE III – INCH BOLT & HELI-COIL INSERT SELECTION GUIDE Bolt Material Minimum Ultimate Tensile Strength (PSI)

54,000 2 1-1/2 1 1 1 1 1

75,000 2-1/2 1-1/2 1-1/2 1 1 1 1

96,000 108,000 125,000 132,000 160,000 180,000 220,000 3 3 – – – – – 2 2-1/2 2-1/2 3 3 – – 1-1/2 2 2 2 2-1/2 3 3 1-1/2 1-1/2 1-1/2 2 2 2-1/2 2-1/2 1 1-1/2 1-1/2 1-1/2 2 2 2-1/2 1 1 1 1-1/2 1-1/2 1-1/2 2 1 1 1 1 1 1-1/2 1-1/2

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2. Parent material shear strengths are for room temperature. For applications at elevated temperatures, the shear strength of the material at that temperature must be determined for proper selection of bolt and insert length. 3. Be sure that the engaged thread length of the bolt is at least as long as the fully tapped thread depth for the size selected (Dimension “C”, Tables VII & VIII, p. 20 -21).

TABLE IV – METRIC BOLT & HELI-COIL INSERT SELECTION GUIDE Bolt Material Minimum Ultimate Tensile Strength MPa (megapascals)

300 1.5 1 1 1 1 1 1

400 2 1.5 1 1 1 1 1

500 2.5 1.5 1.5 1 1 1 1

600 2.5 2 1.5 1 1 1 1

800 – 2.5 2 1.5 1 1 1

1000 – 3 2 1.5 1.5 1.5 1

1200 – – 2.5 1.5 1.5 1.5 1.5

1400 – – 3 2.5 2 1.5 1.5

Corrosion Protection

Type of Conditions & Protective Methods Parent Material Aluminum Magnesium

Parent Material Treatment Insert Treatment Extremely Extremely Normal Severe Severe Normal Severe Severe None 1

1 1

1 1

None None

Assembly strength is a function of shear area and the shear strength of both the bolt and parent material. For detailed charts on specific load values, Heli-Coil Technical Bulletin 68-2 (inch) or Engineering Standard PP15 (metric) covers the complete range of sizes, parent materials and bolt strengths.

2 or 3 2 or 3

2 or 3 2 or 3

Corrosion Protection Methods PARENT MATERIAL TREATMENT Method 1 Aluminum: For oxide coating use Alodine, Anodize, Iridite, Hard Coat or equivalent. Iridite 14 or 14-2 (MIL-C-5541) is recommended for critical parts rather than anodizing (MIL-S-5002). Magnesium: For oxide coating use Iridite 15 or dichromate surface treatments. For HAE finishes, always plug tapped holes first.

INSERT TREATMENT Method 2 – Coat the insert with one of the following: Dry Film Lubricant per AS5272 (MIL-L 46010) (no graphite) or when required by Mil Spec only, Cadmium per QQ-P-416, Type II, .0001" thick. Method 3 – Utilize Heli-Coil Primer-Free II coated inserts. Alternatively, separate the parent material from the insert by using liquid zinc chromate primer. Apply the primer to the hole sparingly and install the insert while the primer is still wet. In addition to the above methods, further corrosion protection can be achieved by: a. Using blind holes wherever possible. b. Using a sealing, insulating or step-down (5052 Alum.) washer under the head of the bolt. c. Using bolts that extend completely through the length of the insert. d. In critical applications, using a non-hardening sealer or compound on the threaded assembly.

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The effect of corrosion on threaded assemblies is dependent on many factors environment, types of metals used, sealing mechanisms and length of service. The following recommendations apply for minimizing the effects of corrosion on Heli-Coil stainless steel insert assemblies at operating temperatures less than 800°F, using carbon steel or alloy steel bolts. The following definitions apply… Normal Service. Natural atmosphere environment with the screw always assembled in the insert. Severe Service. Mildly contaminated atmospheric conditions involving moisture, occasional exposure to salty air or sea spray and the screw may be left out of the insert for extended periods of time. Extremely Severe Service. Assembly is exposed to salt water, corrosive atmosphere and/or the screw is out of the assembly frequently allowing a blind hole to trap water. www.StanleyEngineeredFastening.com

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Tanged Insert Specifications – Inch "Q" Nominal Length

Type Nominal Thread Size

Free Screw Size Running Locking DesigInsert No. Insert No. nation

1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

Outside Diameter 3 Dia.

Min.

Number of Coils

Max.

1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

.103 .119 .139 .159 .173 .193 .220 .259 .285 .330 .400 .472 .551 .622 .694 .767 .906 1.052 1.196 1.355 1.483 1.643 1.772

2-3/4 3 2-7/8 2-3/4 3-1/4 2-3/4 3-1/2 2-7/8 3-1/2 3-3/8 4 4-3/8 4-1/2 4-7/8 5-1/8 5-1/4 5-7/8 6-1/4 6-3/8 6-1/8 7 6-1/2 7-1/4

4-7/8 5-1/4 5 4-3/4 5-1/2 4-3/4 6 5 6 5-3/4 6-5/8 7-1/4 7-3/8 7-7/8 8-1/4 8-1/2 9-3/8 10 10-1/8 9-7/8 11-1/4 10-1/2 11-1/2

6-7/8 7-3/8 7-1/4 6-3/4 7-3/4 6-7/8 8-3/8 7-1/8 8-3/8 8 9-1/4 10 10-1/4 11 11-1/2 11-3/4 13 13-3/4 14 13-5/8 15-3/8 14-3/8 15-7/8

8-7/8 9-5/8 9-3/8 8-7/8 10 8-7/8 10-3/4 9-1/4 10-5/8 10-3/8 11-7/8 12-7/8 13-1/8 14-1/8 14-3/4 15 16-1/2 17-1/2 17-3/4 17-1/2 19-1/2 18-3/8 20-1/8

10-7/8 11-7/8 11-1/2 10-7/8 12-1/4 10-7/8 13-1/4 11-3/8 13-1/8 12-3/4 14-5/8 15-3/4 16-1/8 17-1/8 17-7/8 18-3/8 20-1/8 21-1/4 21-5/8 21-1/4 23-3/4 22-1/4 24-1/2

.119 .146 .162 .193 .224 .256 .326 .400 .468 .549 .617 .691 .758 .901 1.051 1.186 1.199 1.334 1.469 1.610 1.745

3-1/2 3-3/8 3-3/8 3-1/2 3-7/8 4-1/8 5 5-1/2 6-7/8 6-5/8 7-7/8 8 9 9-3/4 9-7/8 11-1/2 9-5/8 11-1/8 12-1/2 13-3/4 15-1/4

5-7/8 5-5/8 5-5/8 6 6-1/2 6-7/8 8-1/4 8-7/8 11 10-5/8 12-3/8 12-1/2 14-1/8 15-1/8 15-1/2 17-7/8 15 17-1/4 19-3/8 21-3/8 23-1/2

8-3/8 8 7-7/8 8-3/8 9-1/8 9-1/2 11-3/8 12-1/4 15 14-5/8 16-7/8 17-1/8 19-1/4 20-5/8 21-1/8 24-1/4 20-1/2 23-3/8 26-1/4 28-7/8 31-5/8

10-3/4 10-3/8 10-1/4 10-3/4 11-5/8 12-1/4 14-1/2 15-5/8 19-1/8 18-1/2 21-3/8 21-3/4 24-1/4 26 26-5/8 30-5/8 26 29-1/2 33 36-1/2 39-7/8

13-1/8 12-5/8 12-1/2 13-1/4 14-1/4 14-7/8 17-5/8 19 23-1/8 22-1/2 25-7/8 26-1/4 29-3/8 31-1/2 32-1/4 37 31-1/2 35-3/4 39-7/8 44 48-1/8

UNIFIED COARSE THREAD (UNC) 1 (.073)-64 2 (.086)-56 3 (.099)-48 4 (.112)-40 5 (.125)-40 6 (.138)-32 8 (.164)-32 10 (.190)-24 12 (.216)-24 1/4 (.2500)-20 5/16 (.3125)-18 3/8 (.3750)-16 7/16 (.4375)-14 1/2 (.5000)-13 9/16 (.5625)-12 5/8 (.6250)-11 3/4 (.7500)-10 7/8 (.8750)-9 1 (1.000)-8 1-1/8 (1.1250)-7 1-1/4 (1.2500)-7 1-3/8 (1.3750)-6 1-1/2 (1.5000)-6

1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185 1185

3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585 3585

01CN 02CN 03CN 04CN 05CN 06CN 2CN 3CN 1CN 4CN 5CN 6CN 7CN 8CN 9CN 10CN 12CN 14CN 16CN 18CN 20CN 22CN 24CN

0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.190 0.216 0.250 0.312 0.375 0.438 0.500 0.562 0.625 0.750 0.875 1.000 1.125 1.250 1.375 1.500

0.110 0.129 0.148 0.168 0.188 0.207 0.246 0.285 0.324 0.375 0.469 0.562 0.656 0.750 0.844 0.938 1.125 1.312 1.500 1.688 1.875 2.062 2.250

2 (.086)-64 3 (.099)-56 4 (.112)-48 6 (.138)-40 8 (.164)-36 10 (.190)-32 1/4 (.2500)-28 5/16 (.3125)-24 3/8 (.3750)-24 7/16 (.4375)-20 1/2 (.5000)-20 9/16 (.5625)-18 5/8 (.6250)-18 3/4 (.7500)-16 7/8 (.8750)-14 1 (1.000)-14* 1 (1.000)-12 1-1/8 (1.1250)-12 1-1/4 (1.2500)-12 1-3/8 (1.3750)-12 1-1/2 (1.5000)-12

1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191 1191

3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591 3591

02CN 03CN 04CN 06CN 2CN 3CN 4CN 5CN 6CN 7CN 8CN 9CN 10CN 12CN 14CN 16CN 161CN 18CN 20CN 22CN 24CN

0.086 0.099 0.112 0.138 0.164 0.190 0.250 0.312 0.375 0.438 0.500 0.562 0.625 0.750 0.875 1.000 1.000 1.125 1.250 1.375 1.500

0.129 0.148 0.168 0.207 0.246 0.285 0.375 0.469 0.562 0.656 0.750 0.844 0.938 1.125 1.312 1.500 1.500 1.688 1.875 2.062 2.250

0.146 0.172 0.198 0.224 0.250 0.276 0.328 0.380 0.432 0.500 0.625 0.750 0.875 1.000 1.125 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000

0.182 0.215 0.248 0.280 0.312 0.345 0.410 0.475 0.540 0.625 0.781 0.938 1.094 1.250 1.406 1.562 1.875 2.188 2.500 2.812 3.125 3.438 3.750

0.219 0.258 0.297 0.336 0.375 0.414 0.492 0.570 0.648 0.750 0.938 1.125 1.312 1.500 1.688 1.875 2.250 2.625 3.000 3.375 3.750 4.125 4.500

.095 .110 .128 .144 .158 .178 .205 .244 .270 .310 .380 .452 .526 .597 .669 .742 .881 1.022 1.166 1.315 1.443 1.598 1.727

UNIFIED FINE THREAD (UNF) 0.172 0.198 0.224 0.276 0.328 0.380 0.500 0.625 0.750 0.875 1.000 1.125 1.250 1.500 1.750 2.000 2.000 2.250 2.500 2.750 3.000

0.215 0.248 0.280 0.345 0.410 0.475 0.625 0.781 0.938 1.094 1.250 1.406 1.562 1.875 2.188 2.500 2.500 2.812 3.125 3.438 3.750

0.258 0.297 0.336 0.414 0.492 0.570 0.750 0.938 1.125 1.312 1.500 1.688 1.875 2.250 2.625 3.000 3.000 3.375 3.750 4.125 4.500

.110 .131 .147 .173 .204 .236 .306 .380 .448 .524 .592 .666 .733 .876 1.021 1.156 1.169 1.304 1.439 1.575 1.710

*Inactive for new design per NASM.

1185-4CNPF375S Type

Size

1185 Free Running, Coarse See Chart 1191 Free Running, Fine 3585 Screw-Locking, Coarse 3591 Screw-Locking, Fine

Complete Part No. Example: Free Running Insert; 1/4-20; Stainless Steel; Primer Free II; 1-1/2 dia.; On Strip

Material

Finish

CN – Stainless Steel BN – Phosphor Bronze TN – Inconel X EN – Nitronic 60 GN – Titanium

PF – Primer Free® II See Chart W – Dry Film Lubricant Y – Cadmium V – Silver Blank – None

Length

Packaging Blank – Bulk S – Strip Feed

Notes on Insert Specifications:

1. Nominal Length is a computed value and cannot be measured. It is the actual assembled length + 1/2 pitch. 2. The number of coils are counted 90º from the tang. 3. Grip Coil(s) Location for 1, 1-1/2 and 2 diameter long inserts, Grip Coil Location = 1/2 the number of free coils. For 2-1/2 and 3 diameter long inserts, Grip Coil Location (distance from the tang) is the same as 2 diameter long inserts.

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Tanged Insert Specifications – Metric "Q" Nominal Length

Type Nominal Thread Size

Free Screw Running Locking Insert No. Insert No.

Size Designation

1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

Outside Diameter 3 Dia.

Number of Coils

Min.

Max.

1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

2.50 2.80 3.20 3.80 4.40 5.05 6.25 7.40 8.65 9.80 11.95 14.30 16.65 18.90 21.30 23.55 25.90 28.00 31.40 34.80 37.80 41.50 44.60

2.70 3.00 3.70 4.35 4.95 5.60 6.80 7.95 9.20 10.35 12.50 15.00 17.35 19.60 22.00 24.40 26.90 29.00 32.40 36.00 39.20 42.90 46.00

3-1/2 3-1/8 3-3/8 3-3/4 3-3/4 3-5/8 4-1/8 4 4-7/8 4-1/2 4-7/8 5 5-1/8 6-1/8 5-3/8 6-1/8 6-3/4 6-1/8 7 6-3/4 7-1/2 7-1/8 7-7/8

5-1/2 5-3/8 5-3/4 6-3/8 6-3/8 6-1/8 6-7/8 6-3/4 8 7-3/8 8 8-1/4 8-1/2 9-3/4 8-7/8 9-7/8 10-7/8 10 11-1/4 10-3/4 12 11-3/8 12-1/2

7-3/4 7-5/8 8-1/8 8-7/8 8-3/4 8-5/8 9-5/8 9-1/2 11-1/8 10-1/4 11-1/8 11-1/2 11-3/4 13-1/2 12-1/4 13-5/8 14-7/8 13-3/4 15-1/2 14-7/8 16-1/2 15-5/8 17-1/8

10-1/8 9-7/8 10-1/2 11-3/8 11-3/8 11-1/8 12-3/8 12-1/8 14-1/8 13-1/4 14-1/4 14-5/8 15 17-1/4 15-5/8 17-3/8 19 17-1/2 19-3/4 18-7/8 21 19-7/8 21-3/4

12-3/8 12-1/8 12-3/4 13-7/8 13-3/4 13-5/8 15-1/8 14-7/8 17-1/4 16-1/8 17-3/8 17-7/8 18-3/8 21 19 21-1/8 23-1/8 21-3/8 24 23 25-3/8 24-1/4 26-3/8

9.70 11.95 12.10 14.30 14.25 16.55 18.90 21.05 23.15 25.55 21.15 23.20 25.60 28.10 31.30 34.50 37.80 41.00 44.30 41.30 44.40

10.25 12.50 12.65 15.00 14.95 17.25 19.60 21.75 24.00 26.45 21.85 24.05 26.50 29.10 32.30 35.70 39.20 42.40 45.70 42.70 45.80

5-7/8 7-5/8 5-7/8 7-1/4 6 7-1/8 8-1/4 9-1/2 10-3/4 11-7/8 7 7-7/8 8-3/4 9-1/2 10-7/8 12-1/4 13-5/8 15 16-3/8 9-3/4 10-3/4

9-3/8 12 9-1/2 11-5/8 9-5/8 11-3/8 13-1/8 15 16-7/8 18-1/2 11-1/8 12-1/2 13-3/4 15 17 19-1/8 21-1/8 23-1/4 25-1/4 15-1/4 16-3/4

13 16-1/2 13-1/8 15-7/8 13-3/8 15-5/8 18 20-3/8 22-7/8 25-1/8 15-3/8 17-1/4 18-7/8 20-3/8 23-1/4 25-7/8 28-5/8 31-3/8 34-1/8 20-7/8 22-3/4

16-1/2 21 16-3/4 20-1/4 17 20 22-3/4 25-7/8 28-7/8 31-5/8 19-1/2 21-7/8 23-7/8 25-7/8 29-3/8 32-3/4 36 39-1/2 43 26-1/2 28-7/8

20-1/8 25-1/2 20-3/8 24-1/2 20-3/4 24-1/4 27-5/8 31-3/8 35 38-1/4 23-5/8 26-1/2 29 31-1/4 35-1/2 39-1/2 43-1/2 47-3/4 51-7/8 32 34-7/8

METRIC COARSE M2x0.4 M2.2x0.45 M2.5x0.45 M3x0.5 M3.5x0.6 M4x0.7 M5x0.8 M6x1 M7x1 M8x1.25 M10x1.5 M12x1.75 M14x2 M16x2 M18x2.5 M20x2.5 M22x2.5 M24x3 M27x3 M30x3.5 M33x3.5 M36x4 M39x4

1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084 1084

4184* 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184 4184

2CN 2.2CN 2.5CN 3CN 3.5CN 4CN 5CN 6CN 7CN 8CN 10CN 12CN 14CN 16CN 18CN 20CN 22CN 24CN 27CN 30CN 33CN 36CN 39CN

2.0 2.2 2.5 3.0 3.5 4.0 5.0 6.0 7.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 27.0 30.0 33.0 36.0 39.0

3.0 3.3 3.8 4.5 5.3 6.0 7.5 9.0 10.5 12.0 15.0 18.0 21.0 24.0 27.0 30.0 33.0 36.0 40.5 45.0 49.5 54.0 58.5

4.0 4.4 5.0 6.0 7.0 8.0 10.0 12.0 14.0 16.0 20.0 24.0 28.0 32.0 36.0 40.0 44.0 48.0 54.0 60.0 66.0 72.0 78.0

M8x1 M10x1 M10x1.25 M12x1.25 M12x1.5 M14x1.5 M16x1.5 M18x1.5 M20x1.5 M22x1.5 M18x2 M20x2 M22x2 M24x2 M27x2 M30x2 M33x2 M36x2 M39x2 M36x3 M39x3

4255 4255 4649 4649 3745 3745 3745 3745 3745 3745 4266 4266 4266 4266 4266 4266 4266 4266 4266 4277 4277

5255 5255 5649 5649 5145 5145 5145 5145 5145 5145 5266 5266 5266 5266 5266 5266 5266 5266 5266 5277 5277

8CN 10CN 10CN 12CN 12CN 14CN 16CN 18CN 20CN 22CN 18CN 20CN 22CN 24CN 27CN 30CN 33CN 36CN 39CN 36CN 39CN

8.0 10.0 10.0 12.0 12.0 14.0 16.0 18.0 20.0 22.0 18.0 20.0 22.0 24.0 27.0 30.0 33.0 36.0 39.0 36.0 39.0

12.0 15.0 15.0 18.0 18.0 21.0 24.0 27.0 30.0 33.0 27.0 30.0 33.0 36.0 40.5 45.0 49.5 54.0 58.5 54.0 58.5

16.0 20.0 20.0 24.0 24.0 28.0 32.0 36.0 40.0 44.0 36.0 40.0 44.0 48.0 54.0 60.0 66.0 72.0 78.0 72.0 78.0

5.0 5.5 6.3 7.5 8.8 10.0 12.5 15.0 17.5 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 67.5 75.0 82.5 90.0 97.5

6.0 6.6 7.5 9.0 10.5 12.0 15.0 18.0 21.0 24.0 30.0 36.0 42.0 48.0 54.0 60.0 66.0 72.0 81.0 90.0 99.0 108.0 117.0

METRIC FINE 20.0 25.0 25.0 30.0 30.0 35.0 40.0 45.0 50.0 55.0 45.0 50.0 55.0 60.0 67.5 75.0 82.5 90.0 97.5 90.0 97.5

24.0 30.0 30.0 36.0 36.0 42.0 48.0 54.0 60.0 66.0 54.0 60.0 66.0 72.0 81.0 90.0 99.0 108.0 117.0 108.0 117.0

*M2 not available in Screw-Locking 1 diameter length

1084-4CNPF040S Type

Size

1084 Free Running, Coarse See Chart 4255, 4649, 3745, 4266 & 4277 Free Running, Fine 4184 Screw-Locking, Coarse 5255, 5649, 5145, 5266 & 5277 Screw-Locking, Fine

Complete Part No. Example: Free Running Insert; M4 x 0.7 Stainless Steel; Primer Free II; 1 dia.; On Strip

Material

Finish

CN – Stainless Steel BN – Phosphor Bronze TN – Inconel X EN – Nitronic 60 GN – Titanium

PF – Primer Free® II See Chart W – Dry Film Lubricant Y – Cadmium V - Silver Blank – None

Length

Packaging Blank – Bulk S – Strip Feed

Notes on Insert Specifications:

1. Nominal length is a computed value and cannot be measured. It is the actual assembled length + 1/2 pitch. 2. The number of coils are counted from the notch. 3. Phosphor Bronze Inserts – Not available in sizes M2, M2.2, M2.5, M3, M3.5 and M4. 4. Inconel X Inserts – 1 diameter long Screw-Locking inserts not available in sizes M2, M2.2, M2.5 and M3

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Tangless Insert Specifications – Inch ®

Tangless threaded inserts provide many advantages over Tanged inserts. They eliminate the need for tang break off and tang retrieval and allow for non-destructive insert removal. Tangless inserts are easily adjusted and easily removed after installation. Inch and metric size inserts are available in stainless steel and gall resistant (or Nitronic 60) materials. Finish options include Primer Free® II, Dry Film Lube (and Cadmium when required by Mil Spec.)

TANGLESS® Nominal

Thread Size

Side View

Top View

INSERTS

Type Free Screw- Size Running Locking Designation 1 Dia.

A B Length Free Outside Dia. Number of Coils 1 1/2 Dia. 2 Dia. Min. Max. 1 Dia. 1 1/2 Dia. 2 Dia.

2 (.086)-56 T1185

T3585

02C

.086

.129

.172

.110

.119

3

5-1/4

7-3/8

4 (.112)-40

T3585

04C

.112

.168

.224

.144

.159

2-3/4

4-3/4

6-3/4

T1185

UNIFIED COARSE THREAD (UNC)

6 (.138)-32

T1185

T3585

06C

.138

.207

.276

.178

.193

2-3/4

4-3/4

6-7/8

8 (.164)-32

T1185

T3585

2C

.164

.246

.328

.205

.220

3-1/2

6

8-3/8

10 (.190)-24

T1185

T3585

3C

.190

.285

.380

.244

.259

2-7/8

5

7-1/8

1/4 (.250)-20

T1185

T3585

4C

.250

.375

.500

.310

.330

3-3/8

5-3/4

8

10 (.190)-32 T1191

T3591

.256

4-1/8

6-7/8

9-1/2



UNIFIED FINE THREAD (UNF)

1/4 (.250)-28 T1191 T3591

3C

.190

4C

.250 .375 .500 .306 .326 5

.285

.380

.236

8-1/4 11-3/8

T3585–04CPF112S

Type

Size

Material

T1185 Free Running, UNC See Chart C - Stainless Steel T1191 Free Running, UNF E - Nitronic 60 T3585 Screw-Locking, UNC T3591 Screw-Locking, UNF

Finish

Length Packaging

PF - Primer Free® II See Chart W - Dry Film Lube Y - Cadmium Blank - No Finish

Blank - Bulk S - Strip Feed

Complete Part No. Example: Screw-locking Insert; #4-40; Stainless Steel; Primer Free II, 1 dia.; On Strip

TANGLESS® STI TAPS AND GAGES Straight Flute Spiral Point High Spiral Flute Nominal Thread Plug Bottoming Plug Bottoming Working Gage Size 3B 2B 3B 2B 3B 2B 3B 2B 3B 2B UNIFIED COARSE THREAD (UNC) 2-56

02CPB 02CPA

02CBB

02CBA

02CSB

02CSA 5905-02 6905-02 3688-02 1442-02

4-40

04CPB 04CPA

04CBB

04CBA

04CSB

04CSA 5905-04 6905-04 3688-04 1442-04

6-32

06CPB 06CPA

06CBB

06CBA

06CSB

06CSA 5905-06 6905-06 3688-06 1442-06

8-32

2CPB 2CPA

2CBB

2CBA

2CSB

2CSA 5905-2 6905-2 3688-2 1442-2

10-24

3CPB 3CPA

3CBB

3CBA

3CSB

3CSA 5905-3 6905-3 3688-3 1442-3

1/4-20 4CPB 4CPA

4CBB

4CBA

4CSB

4CSA 5905-4 6905-4 3688-4 1442-4

UNIFIED FINE THREAD (UNF) 10-32

3FPB

3FPA

3FBB

3FBA

3FSB

3FSA 5906-3 6906-3 3694-3 1443-3

1/4-28

4FPB

4FPA

4FBB

4FBA

4FSB

4FSA 5906-4 6906-4 3694-4 1443-4

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Tangless Insert Specifications – Metric ®

FEATURES AND BENEFITS: » Bi-Directional Design – Installs quickly and easily from either end » FOD Design – No foreign object debris with no tang to remove; ideal for critical electronics applications

» Stronger Assemblies. – Threads are stronger due to the flexibility of the insert providing a balanced distribution of the load » Cost Reduction. – Decreased installation and inspection time.



TANGLESS® INSERTS

Nominal Type A Thread Size

B Free Screw- Size Length Free Outside Dia. Number of Coils Running Locking Designation 1 Dia. 1 1/2 Dia. 2 Dia Min. Max. 1 Dia. 1 1/2 Dia. 2 Dia.

M2.5x0.45

Side View

METRIC COARSE

T1084

T4184

2.5C

2.5

3.8

5.0

3.20

3.70

3-3/8

5-3/4

8-1/8

M3x0.5

T1084

T4184

3C

3.0

4.5

6.0

3.80

4.35

3-3/4

6-3/8

8-7/8

M4x0.7

T1084

T4184

4C

4.0

6.0

8.0

5.05

5.60

3-5/8

6-1/8

8-5/8

M5x0.8

T1084

T4184

5C

5.0

7.5

10.0

6.25

6.80

4-1/8

6-7/8

9-5/8

M6x1.0

T1084

T4184

6C

6.0

9.0

12.0

7.40

7.95

4

6-3/4

9-1/2

Top View

T1084–4CPF040S

Type

Size

Material

Finish Free®



Length Packaging

T1084 Free Running, Coarse See Chart C - Stainless Steel PF - Primer II See Chart T4184 Screw-Locking, Coarse E - Nitronic 60 W - Dry Film Lubricant Y - Cadmium Blank - No Finish

Blank - Bulk S - Strip Feed

Complete Part No. Example: Free Running Insert; M4 x 0.7; Tap Stainless Steel; Primer Free II; 1 dia.; On Strip

TANGLESS® STI TAPS AND GAGES Nominal Straight Flute Spiral Point High Spiral Flute Thread Plug Bottoming Plug Bottoming Reference Gage Size 4H5H 5H 4H5H 5H 4H5H 5H 4H5H 5H 4H 5H METRIC COARSE M2.5x0.45 4687-2.5 2087-2.5 4693-2.5 2093-2.5 4863-2.5 4763-2.5 5081-2.5 4681-2.5 4624-2.5 1324-2.5 M3x0.5 4687-3 2087-3 4693-3 2093-3 4863-3 4763-3 5081-3 4681-3 4624-3 1324-3 M4x0.7 4687-4 2087-4 4693-4 2093-4 4863-4 4763-4 5081-4 4681-4 4624-4 1324-4 M5x0.8 4687-5 2087-5 4693-5 2093-5 4863-5 4763-5 5081-5 4681-5 4624-5 1324-5 M6x1.0 4687-6 2087-6 4693-6 2093-6 4863-6 4763-6 5081-6 4681-6 4624-6 1324-6

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Assembly Design

Boss Dimensions

Class of Fit

Standard boss configurations may be used with Heli-Coil inserts.

Since Heli-Coil inserts are flexible, the class of fit of the final assembly is a function of the tapped hole. Heli-Coil STI (Screw Thread Insert) taps are available in inch series for both Class 2B and 3B. Metric Classes include 5H and 4H5H. Class 2B or 5H tapped holes provide widest production tolerances while Class 3B or 4H5H holes provide slightly tighter tolerances.

A boss diameter of twice the nominal bolt size is adequate for most load conditions. For critical applications, the boss diameter should be twice the Heli-Coil tap major diameter (Tables VII & VIII, p. 20-21). Boss thickness is a function of the size and length of the insert chosen and the particular requirements of the component being designed. The use of Heli-Coil inserts generally minimizes the size of the boss because their high strength characteristics allow for smaller or fewer fasteners.

Class 3B or 4H5H holes are recommended for Screw-Locking applications.

Bolt Projection

Torque Assembly Data

Standard bolts and screws that need no special hardware are used with Heli-Coil inserts. The bolt must engage the entire insert to insure maximum assembly strength. It is strongly recommended that the tang always be removed and bolt projection be equal to the full tapped thread depth (Dimension C, Tables VII & VIII, p. 20-21). If design limitations prohibit this, contact us to obtain minimum bolt projection data.

The torque to utilize for the mating fastener for Free Running inserts is per the bolt manufacturer's recommendation. The value for Screw-Locking inserts is also per the bolt manufacturer's recommendation, as well as the maximum locking torque. (See p.10)

Material Thickness The minimum material thickness for through hole assemblies is equal to the Insert Nominal Length (Dimension Q, p.12-13), without a countersink and the insert installed 1/4-1/2 pitch below the surface. For production, the hole should be counter-sunk, and the insert installed 3/4–1-1/2 pitch below the surface. In this case the minimum material thickness is “Q” + 1 pitch.

Q

Hole Preparation Drawing Call Out On the left is a sectional view of an installed insert for a Heli-Coil Insert Assembly. The example used is a 3/8-24 x .562 long Screw-Locking insert in a blind hole, Class 3B fit, tapped with a plug tap. Note: A is equivalent to the minimum drill depth; see Table V & VI on p. 18-19. C is the minimum tapping depth; see Table VII & VIII on p. 20-21.

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Production Engineering Data Engineering Data Conventional machining methods are used for Heli-Coil assemblies. The process is simple… 1. Drill 2. Countersink 3. Tap 4. Gage

1. Drilling The suggested drill sizes listed for aluminum in Tables V & VI, p. 18-19, are within the minor diameter limits specified in NASM33537 or MA1567. Drill sizes listed for steel, magnesium and plastic are larger (in most cases) allowing for parent material “close-in” in soft materials and increased tap wear life in hard materials. The drill depths listed in this table allow for tap end clearance, maximum insert “set-down”, countersink, and the chamfer on the tap. These drill depths are minimum and should be increased where possible, especially when using Spiral Pointed Taps, to allow for chip clearance. The formula for the drill depth is given on p.18-19.

2. Countersinking Countersinking the drilled hole is recommended to prevent a feather edge at the top of the tapped hole and to help guide the insert into the tapped threads. A 120° included angle countersink is necessary to insure that the angle of the tapped thread and the countersink are the same (120° ÷ 2 = 60° tapped thread).

Heli-Coil taps for free machining materials are listed in Tables IX & XII, p.22 & 24 Class 2B (inch), 5H metric and 3B (inch) or 4H5H (metric) tapped holes. (Class of fit recommendations are given on p.14). There are four types of taps listed: a. Straight, Flute, Plug & Bottoming style which are used for hand and short run production. b. Spiral Point Plug taps (chips are pushed forward) are used for through holes and blind hole with ample chip clearance at the bottom. c. High Spiral Flute Bottoming taps (chips are pulled out of the hole) are used for deep or blind holes in soft stringy materials and holes with minimal chip clearance. d. Roughing taps (7/16-1") are available for materials difficult to tap to reduce the load and wear on the finishing tap. If it is necessary to decrease the Minimum Depth of the drilled and tapped hole, one or more of the following steps may be helpful:

Action

Amount of Reduction

Remove the male center on plug taps 5/16, M8 & under

one half of the bolt diameter

3. Tapping

Use a bottoming tap

2 pitches

The dimensions for the depth of the full tapped thread (Dimension C, Tables VII & VIII, p.20-21) are MINIMUM for blind holes with countersinks. For through holes without a countersink the minimum full tapped thread depth must be equal to the insert nominal length (Dimension Q, p.12-13).

Eliminate the countersink

1/2 pitch

Reduce insert “set-down” to 1/4-1/2 pitch up to 1/2 pitch

4. Gaging Heli-Coil thread plug gages should be used to check the tapped holes before insert installation and according to sampling plan. See p.26-27 for gage part numbers and further gaging data.

Preparing Process Sheets A sample process sheet for preparing a tapped hole for Heli-Coil inserts is shown below. Highlighted are references to the various dimensional data and part number specifications listed in the tables on pages listed. Insert installation and tang break off are covered in subsequent pages. Hole preparation for 3/8-24, Screw-Locking Heli-Coil Insert, .562 long, Part No. 3591-6CN562 Blind Hole, Class 3B, tapped with a plug tap in aluminum

Sequence Operation Description

Tool or Gage



1

Drill hole .3840/.3910 diameter to minimum depth (Dimension A, Tables V & VI, p. 18-19)

25/64 drill (.3906), Tables V & VI, p. 17-19



2

Countersink 120°±5° to .42/.45 diameter (Dimension M, Tables VII & VIII, p. 20-21)

120° countersink



3

Tap 3/8 (.3750)-24 UNF-3B STI Thread Depth .600 (Dimension C, Tables VII & VIII, p. 20-21) Heli-Coil tap 6FPB, Tables IX & XI, p. 22 & 24

4

Remove chips

Air Nozzle



5

Gage according to your sampling plan

Heli-Coil gage 3694-6, p. 26-27



6

Install 3591-6CN562 Heli-Coil insert 3/4 to 1-1/2 pitch below surface

Installation Tool 7552-6, p. 29



7

Break off tang

Heli-Coil tang break-off tool 3692-6, p. 33

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Drilling Data – Inch

The minimum drilling depths shown below allow for the following recommended practices: 1. Countersinking the drilled hole to prevent a feather edge at the start of the tapped hole. 2. 3/4 – 1-1/2 pitch of insert “set-down” to allow for maximum production tolerance. Dimensions are shown for both plug and bottoming taps.

TABLE V – INCH DRILLED HOLE DIMENSIONS Nominal Thread Size

Suggested Drill Size Aluminum

Steel, Magnesium, Plastic

"A" MINIMUM DRILLING DEPTH FOR EACH INSERT LENGTH Plug Taps Bottoming Taps 1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

UNIFIED COARSE THREAD (UNC) 1 (.073)-64

#47 (.0785)

#46 (.0810)

.203

.240

.276

.313

.349

.136

.172

.209

.245

.282

2 (.086)-56

3/32 (.0938)

#41 (.0960)

.236

.279

.322

.365

.408

.157

.200

.243

.286

.329

3 (.099)-48

#36 (.1065)

7/64 (.1094)

.273

.323

.372

.422

.471

.182

.232

.281

.331

.380

4 (.112)-40

#31 (.1200)

#31 (.1200)

.318

.374

.430

.486

.542

.212

.268

.324

.380

.436

5 (.125)-40

3.4mm (.1339)

#29 (.1360)

.338

.400

.462

.525

.588

.225

.288

.350

.412

.475

6 (.138)-32

#26 (.1470)

#25 (.1495)

.394

.464

.532

.602

.670

.263

.332

.401

.470

.539

8 (.164)-32

#17 (.1730)

#16 (.1770)

.434

.516

.598

.680

.762

.289

.371

.453

.535

.617

10 (.190)-24

13/64 (.2031)

#5 (.2055)

.535

.630

.725

.820

.915

.357

.452

.547

.642

.737

12 (.216)-24*

#1 (.2280)

#1 (.2280)

.574

.682

.790

.898

1.006

.383

.491

.599

.707

.815

1/4 (.2500)-20

H (.2660)

H (.2660)

.675

.800

.925

1.050

1.175

.450

.575

.700

.825

.950

5/16 (.3125)-18

Q (.3320)

Q (.3320)

.801

.957

1.113

1.269

1.425

.534

.690

.846

1.002

1.158

3/8 (.3750)-16

X (.3970)

X (.3970)

.750

.938

1.125

1.312

1.500

.625

.812

1.000

1.188

1.375

7/16 (.4375)-14

29/64 (.4531)

29/64 (.4531)

.867

1.086

1.305

1.524

1.743

.724

.943

1.162

1.381

1.600

1/2 (.5000)-13*

33/64 (.5156)

17/32 (.5312)

.962

1.212

1.462

1.712

1.962

.808

1.058

1.308

1.558

1.808

9/16 (.5625)-12*

37/64 (.5781)

19/32 (.5938)

1.062

1.343

1.624

1.905

2.186

.895

1.176

1.457

1.738

2.019

5/8 (.6250)-11

21/32 (.6562)

21/32 (.6562)

1.170

1.483

1.795

2.108

2.420

.989

1.301

1.614

1.926

2.239

3/4 (.7500)-10

25/32 (.7812)

25/32 (.7812)

1.350

1.725

2.100

2.475

2.850

1.150

1.525

1.900

2.275

2.650

7/8 (.8750)-9

29/32 (.9062)

29/32 (.9062)

1.542

1.979

2.417

2.854

3.292

1.319

1.757

2.194

2.632

3.069

1 (1.000)-8

1-1/32 (1.0312)

1-1/32 (1.0312)

1.750

2.250

2.750

3.250

3.750

1.500

2.000

2.500

3.000

3.500

1-1/8 (1.1250)-7

1-11/64 (1.1719)

1-11/64 (1.1719)

1.982

2.545

3.107

3.670

4.232

1.696

2.259

2.821

3.384

3.946

1-1/4 (1.2500)-7

1-19/64 (1.2969)

1-19/64 (1.2969)

2.107

2.732

3.357

3.982

4.607

1.821

2.446

3.071

3.696

4.321

1-3/8 (1.3750)-6

1-27/64 (1.4219)

1-27/64 (1.4219)

2.375

3.062

3.750

4.437

5.125

2.042

2.729

3.417

4.104

4.792

1-1/2 (1.5000)-6

1-35/64 (1.5469)

1-35/64 (1.5469)

2.500

3.250

4.000

4.750

5.500

2.167

2.917

3.667

4.417

5.167

UNIFIED FINE THREAD (UNF) 2 (.086)-64

2.35mm (.0925)

2.35mm (.0925)

.223

.266

.309

.352

.395

.149

.192

.235

.278

.321

3 (.099)-56

#37 (.1040)

#36 (.1065)

.256

.305

.355

.404

.454

.170

.220

.269

.319

.368

4 (.112)-48

3mm (.1181)

#31 (.1200)

.293

.349

.405

.461

.517

.195

.251

.307

.363

.419

6 (.138)-40

#26 (.1470)

#25 (.1495)

.357

.426

.495

.564

.633

.238

.307

.376

.445

.514

8 (.164)-36

#17 (.1730)

#16 (.1770)

.413

.495

.577

.659

.741

.275

.357

.439

.521

.603

10 (.190)-32

#7 (.2010)

13/64 (.2031)

.472

.568

.662

.758

.852

.315

.410

.505

.600

.695

1/4 (.2500)-28

G (.2610)

6.7mm (.2638)

.589

.714

.839

.964

1.089

.393

.518

.643

.768

.893

5/16 (.3125)-24

21/64 (.3281)

21/64 (.3281)

.718

.874

1.030

1.186

1.342

.479

.635

.791

.947

1.103

3/8 (.3750)-24

25/64 (.3906)

25/64 (.3906)

.625

.812

1.000

1.187

1.375

.542

.729

.917

1.104

1.292

7/16 (.4375)-20

29/64 (.4531)

29/64 (.4531)

.738

.957

1.176

1.395

1.614

.638

.857

1.076

1.295

1.514

1/2 (.5000)-20

33/64 (.5156)

33/64 (.5156)

.800

1.050

1.300

1.550

1.800

.700

.950

1.200

1.450

1.700

9/16 (.5625)-18

37/64 (.5781)

37/64 (.5781)

.895

1.176

1.457

1.738

2.019

.784

1.065

1.346

1.627

1.908

5/8 (.6250)-18

41/64 (.6406)

41/64 (.6406)

.958

1.271

1.583

1.896

2.208

.847

1.160

1.472

1.785

2.097

3/4 (.7500)-16

49/64 (.7656)

49/64 (.7656)

1.125

1.500

1.875

2.250

2.625

1.000

1.375

1.750

2.125

2.500

7/8 (.8750)-14

57/64 (.8906)

57/64 (.8906)

1.304

1.741

2.179

2.616

3.054

1.161

1.598

2.036

2.473

2.911

1 (1.000)-14

1-1/64 (1.0156)

1-1/32 (1.0312)

1.429

1.929

2.429

2.929

3.429

1.286

1.786

2.286

2.786

3.286

1 (1.000)-12*

1-1/64 (1.0156)

1-1/32 (1.0312)

1.500

2.000

2.500

3.000

3.500

1.333

1.833

2.333

2.833

3.333

1-1/8 (1.1250)-12*

1-9/64 (1.1406)

1-5/32 (1.1562)

1.625

2.187

2.750

3.312

3.875

1.458

2.021

2.583

3.146

3.708

1-1/4 (1.2500)-12*

1-17/64 (1.2656)

1-9/32 (1.2812)

1.750

2.375

3.000

3.625

4.250

1.583

2.208

2.833

3.458

4.083

1-3/8 (1.3750)-12*

1-25/64 (1.3906)

1-13/32 (1.4062)

1.875

2.562

3.250

3.937

4.625

1.708

2.396

3.083

3.771

4.458

1-1/2 (1.5000)-12*

1-33/64 (1.5156)

1-17/32 (1.5312)

2.000

2.750

3.500

4.250

5.000

1.833

2.583

3.333

4.083

4.833

*Standard size drills are suggested even though in these sizes they vary slightly from minor diameter specifications in NASM33537.

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Drilling Data – Metric For Plug Taps 5/16” or M8 and smaller. A is equal to the insert nominal length (Q) + ½ the nominal bolt diameter + 5 Pitch (allowing for tap chamfer, countersink and maximum “set-down”).

Note: Plug taps 5/16" or M8 and smaller have a male center and the drilled hole depth dimensions allow for this length (one half of the diameter of the bolt).

For Plug Taps 3/8” or M10 and larger. A is equal to the insert nominal length (Q) + 5 Pitch (allowing for tap chamfer, counter sink and maximum “set-down”).

Calculation of dimension “A” is described to the left and on p. 18.

For Bottoming Taps. A is equal to the insert nominal length (Q) + 3 Pitch (allowing for tap chamfer, countersink and maximum “set-down”).

Note: “Q’’ dimensions are on p.12-13.

TABLE VI – METRIC DRILLED HOLE DIMENSIONS Nominal Thread Size

Suggested Drill Size Aluminum

Steel, Magnesium, Plastic

"A" MINIMUM DRILLING DEPTH FOR EACH INSERT LENGTH Plug Taps Bottoming Taps 1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

METRIC COARSE M2X0.4

2.10

2.10

5.40

6.40

7.40

8.40

9.40

3.60

4.60

5.60

6.60

7.60

M2.2x0.45

2.30

2.35

6.00

7.10

8.20

9.30

10.40

4.00

5.10

6.20

7.30

8.40

M2.5x0.45

2.55

2.65

6.45

7.70

8.95

10.20

11.45

4.30

5.55

6.80

8.05

9.30

M3x0.5

3.15

3.20

7.50

9.00

10.50

12.00

13.50

5.00

6.50

8.00

9.50

11.00

M3.5x0.6

3.70

3.70

8.85

10.60

12.35

14.10

15.85

5.90

7.65

9.40

11.15

12.90

M4x0.7

4.20

4.25

10.20

12.20

14.20

16.20

18.20

6.80

8.80

10.80

12.80

14.80

M5x0.8

5.20

5.30

12.30

14.80

17.30

19.80

22.30

8.20

10.70

13.20

15.70

18.20

M6x1

6.25

6.30

15.00

18.00

21.00

24.00

27.00

10.00

13.00

16.00

19.00

22.00

M7x1

7.25

7.30

16.50

20.00

23.50

27.00

30.50

11.00

14.50

18.00

21.50

25.00

M8x1.25

8.30

8.40

19.50

23.50

27.50

31.50

35.50

13.00

17.00

21.00

25.00

29.00

M10x1.5

10.50

10.50

19.00

24.00

29.00

34.00

39.00

16.00

21.00

26.00

31.00

36.00

M12x1.75

12.50

12.50

22.50

28.50

34.50

40.50

46.50

19.00

25.00

31.00

37.00

43.00

M14x2

14.50

14.50

26.00

33.00

40.00

47.00

54.00

22.00

29.00

36.00

43.00

50.00

M16x2

16.50

16.50

28.00

36.00

44.00

52.00

60.00

24.00

32.00

40.00

48.00

56.00

M18x2.5

18.75

18.75

33.00

42.00

51.00

60.00

69.00

28.00

37.00

46.00

55.00

64.00

M20x2.5

20.75

20.75

35.00

45.00

55.00

65.00

75.00

30.00

40.00

50.00

60.00

70.00

M22x2.5

22.75

22.75

37.00

48.00

59.00

70.00

81.00

32.00

43.00

54.00

65.00

76.00

M24x3

24.75

24.75

42.00

54.00

66.00

78.00

90.00

36.00

48.00

60.00

72.00

84.00

M27x3

27.75

27.75

45.00

58.50

72.00

85.50

99.00

39.00

52.50

66.00

79.50

93.00

M30x3.5

31.00

31.00

51.00

66.00

81.00

96.00

111.00

44.00

59.00

74.00

89.00

104.00

M33x3.5

34.00

34.00

54.00

70.50

87.00

103.50

120.00

47.00

63.50

80.00

96.50

113.00

M36x4

37.00

37.00

60.00

78.00

96.00

114.00

132.00

52.00

70.00

88.00

106.00

124.00

M39x4

40.00

40.00

63.00

82.50

102.00

121.50

141.00

55.00

74.50

94.00

113.50

133.00

METRIC FINE M8x1

8.25

8.30

18.00

22.00

26.00

30.00

34.00

12.00

16.00

20.00

24.00

28.00

M10x1

10.25

10.25

16.00

21.00

26.00

31.00

36.00

14.00

19.00

24.00

29.00

34.00

M10x1.25*

10.25

10.25

17.50

22.50

27.50

32.50

37.50

15.00

20.00

25.00

30.00

35.00

M12x1.25*

12.25

12.25

19.50

25.50

31.50

37.50

43.50

17.00

23.00

29.00

35.00

41.00

M12x1.5*

12.25

12.50

21.00

27.00

33.00

39.00

45.00

18.00

24.00

30.00

36.00

42.00

M14x1.5*

14.25

14.50

23.00

30.00

37.00

44.00

51.00

20.00

27.00

34.00

41.00

48.00

M16x1.5*

16.25

16.50

25.00

33.00

41.00

49.00

57.00

22.00

30.00

38.00

46.00

54.00

M18x1.5*

18.25

18.50

27.00

36.00

45.00

54.00

63.00

24.00

33.00

42.00

51.00

60.00

M20x1.5*

20.25

20.50

29.00

39.00

49.00

59.00

69.00

26.00

36.00

46.00

56.00

66.00

M22x1.5*

22.25

22.50

31.00

42.00

53.00

64.00

75.00

28.00

39.00

50.00

61.00

72.00

M18x2

18.50

18.50

30.00

39.00

48.00

57.00

66.00

26.00

35.00

44.00

53.00

62.00

M20x2

20.50

20.50

32.00

42.00

52.00

62.00

72.00

28.00

38.00

48.00

58.00

68.00

M22x2

22.50

22.50

34.00

45.00

56.00

67.00

78.00

30.00

41.00

52.00

63.00

74.00

M24x2

24.50

24.50

36.00

48.00

60.00

72.00

84.00

32.00

44.00

56.00

68.00

80.00

M27x2

27.50

27.50

39.00

52.50

66.00

79.50

93.00

35.00

48.50

62.00

75.50

89.00

M30x2

30.50

30.50

42.00

57.00

72.00

87.00

102.00

38.00

53.00

68.00

83.00

98.00

M33x2

33.50

33.50

45.00

61.50

78.00

94.50

111.00

41.00

57.50

74.00

90.50

107.00

M36x2

36.50

36.50

48.00

66.00

84.00

102.00

120.00

44.00

62.00

80.00

98.00

116.00

M39x2

39.50

39.50

51.00

70.50

90.00

109.00

129.00

47.00

66.50

86.00

105.50

125.00

M36x3

37.00

37.00

54.00

72.00

90.00

108.00

126.00

48.00

66.00

84.00

102.00

120.00

M39x3

40.00

40.00

57.00

76.50

96.00

115.50

135.00

51.00

70.50

90.00

109.50

129.00

* Standard size drills are suggested even though in these sizes they vary slightly from minor diameter limits.

- 19 -

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Tapping Data – Inch

The minimum tapping depths shown below (Dimension C) are the minimum for countersunk holes and an insert set-down of 1 – 1/2 pitch maximum. The calculation for Dimension “C” is: C is equal to insert nominal length + 1 Pitch. The tapped hole must be held within the stated pitch diameter limits for the required class of fit for the installed Heli-Coil insert.

A

When anodize, Iridite or other finishes are used, all tapped hole dimensions must be met after the finishes are applied.

TABLE VII – INCH TAPPED HOLE DIMENSIONS Nominal Thread Size

Countersink “M” Diameter (120º ±5º included angle)

Pitch Diameter 2B Max.

“C” MINIMUM TAPPING DEPTH

Minor Diameter (after tapping)

INSERT LENGTH

Min.

Max.

Min.

3B Max.

1 (.073)-64

.085

.10

.0832

.0843

.0850

.090

.125

.160

.200

2 (.086)-56

.09

.11

.0976

.0989

.0996

.100

.150

.190

.230

3 (.099)-48

.11

.14

.1126

.1140

.1148

.120

.170

.220

4 (.112)-40

.14

.17

.1283

.1299

.1308

.140

.190

5 (.125)-40

.16

.19

.1413

.1430

.1438

.150

6 (.138)-32

.18

.21

.1583

.1601

.1611

8 (.164)-32

.20

.23

.1843

.1862

10 (.190)-24

.24

.27

.2170

12 (.216)-24

.26

.29

1/4 (.2500)-20

.31

5/16 (.3125)-18

1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

Tap Major Dia.

Thread Pitch

Min.

Max.

Max.

.235

.0764

.0823

.0958

.01563

.280

.0899

.0961

.1117

.01786

.270

.320

.1036

.1104

.1289

.02083

.250

.310

.360

.1175

.1252

.1473

.02500

.210

.280

.340

.400

.1305

.1373

.1603

.02500

.170

.240

.310

.380

.450

.1448

.1527

.1817

.03125

.1872

.200

.280

.360

.440

.520

.1708

.1781

.2077

.03125

.2192

.2203

.230

.330

.420

.520

.610

.1990

.2080

.2475

.04167

.2430

.2453

.2464

.260

.370

.470

.580

.690

.2250

.2340

.2735

.04167

.34

.2825

.2851

.2864

.300

.430

.550

.680

.800

.2608

.2704

.3187

.05000

.38

.41

.3486

.3515

.3529

.370

.530

.680

.840

.990

.3245

.3342

.3884

.05556

3/8 (.3750)-16

.45

.48

.4156

.4189

.4203

.440

.630

.810

1.000

1.190

.3885

.3987

.4602

.06250

7/16 (.4375)-14

.52

.55

.4839

.4875

.4890

.510

.730

.950

1.170

1.380

.4530

.4639

.5343

.07143

1/2 (.5000)-13

.59

.62

.5499

.5537

.5554

.580

.830

1.080

1.330

1.580

.5166

.5273

.6042

.07692

9/16 (.5625)-12

.66

.69

.6167

.6208

.6225

.650

.930

1.210

1.490

1.770

.5806

.5918

.6751

.08333

5/8 (.65250)-11

.73

.76

.6841

.6885

.6903

.720

1.030

1.340

1.650

1.970

.6447

.6564

.7477

.09091

3/4 (.7500)-10

.87

.90

.8149

.8196

.8216

.850

1.230

1.600

1.980

2.350

.7716

.7838

.8850

.10000

7/8 (.8750)-9

1.00

1.03

.9471

.9522

.9543

.990

1.420

1.860

2.300

2.740

.8990

.9119

1.0247

.11111

1 (1.000)-8

1.14

1.17

1.0812

1.0868

1.0890

1.130

1.630

2.130

2.630

3.130

1.0271

1.0421

1.1681

.12500

1-1/8 (1.1250)-7

1.29

1.32

1.2178

1.2239

1.2262

1.270

1.830

2.390

2.960

3.520

1.1559

1.1730

1.3171

.14286

1-1/4 (1.2500)-7

1.41

1.44

1.3428

1.3490

1.3514

1.390

2.020

2.640

3.270

3.890

1.2809

1.2980

1.4421

.14286

1-3/8 (1.3750)-6

1.56

1.59

1.4832

1.4900

1.4926

1.540

2.230

2.920

3.600

4.290

1.4110

1.4310

1.5982

.16667

1-1/2 (1.5000)-6

1.69

1.72

1.6082

1.6151

1.6177

1.670

2.420

3.170

3.920

4.670

1.5360

1.5560

1.7232

.16667

UNIFIED COARSE THREAD (UNC)

UNIFIED FINE THREAD (UNF) 2 (.086)-64

.09

.11

.0962

.0974

.0981

.100

.145

.190

.230

.275

.0894

.0947

.1088

.01563

3 (.099)-56

.11

.14

.1106

.1119

.1126

.120

.170

.220

.270

.310

.1029

.1086

.1247

.01786

4 (.112)-48

.14

.17

.1256

.1271

.1279

.130

.190

.240

.300

.360

.1166

.1229

.1419

.02083

6 (.138)-40

.17

.20

.1543

.1560

.1569

.160

.230

.300

.370

.440

.1435

.1503

.1733

.02500

8 (.164)-36

.20

.23

.1821

.1840

.1849

.190

.270

.360

.440

.520

.1701

.1771

.2032

.02778

10 (.190)-32

.23

.26

.2103

.2123

.2133

.220

.320

.410

.510

.600

.1968

.2041

.2337

.03125

1/4 (.2500)-28

.29

.32

.2732

.2754

.2765

.290

.410

.540

.660

.790

.2577

.2646

.2995

.03571

5/16 (.3125)-24

.36

.39

.3395

.3421

.3433

.350

.510

.670

.820

.980

.3215

.3288

.3700

.04167

3/8 (.3750)-24

.42

.45

.4020

.4047

.4059

.420

.600

.790

.980

1.170

.3840

.3910

.4325

.04167

7/16 (.4375)-20

.50

.53

.4700

.4731

.4744

.490

.710

.930

1.140

1.360

.4483

.4561

.5062

.05000

1/2 (.5000)-20

.56

.59

.5325

.5357

.5371

.550

.800

1.050

1.300

1.550

.5108

.5186

.5687

.05000

9/16 (.5625)-18

.63

.66

.5986

.6020

.6035

.620

.900

1.180

1.460

1.740

.5745

.5826

.6384

.05556

5/8 (.6250)-18

.69

.72

.6611

.6646

.6661

.680

.990

1.310

1.620

1.930

.6370

.6451

.7009

.05556

3/4 (.7500)-16

.82

.85

.7906

.7945

.7961

.810

1.190

1.560

.1940

2.310

.7635

.7720

.8352

.06250

7/8 (.8750)-14

.96

.99

.9214

.9257

.9274

.950

1.380

1.820

2.260

2.700

.8905

.8994

.9718

.07143

1 (1.000)-14

1.08

1.11

1.0464

1.0508

1.0527

1.070

1.570

2.070

2.570

3.070

1.0155

1.0243

1.0968

.07143

1 (1.000)-12

1.10

1.13

1.0542

1.0589

1.0608

1.080

1.580

2.080

2.580

3.080

1.0181

1.0281

1.1126

.08333

1-1/8 (1.1250)-12

1.22

1.25

1.1792

1.1841

1.1860

1.210

1.770

2.330

2.900

3.460

1.1431

1.1531

1.2376

.08333

1-1/4 (1.2500)-12

1.35

1.38

1.3042

1.3092

1.3112

1.330

1.960

2.580

3.210

3.830

1.2681

1.2781

1.3626

.08333

1-3/8 (1.3750)-12

1.47

1.50

1.4292

1.4343

1.4364

1.460

2.150

2.830

3.520

4.210

1.3931

1.4031

1.4876

.08333

1-1/2 (1.5000)-12

1.60

1.63

1.5542

1.5595

1.5615

1.580

2.330

3.080

3.830

4.580

1.5181

1.5281

1.6126

.08333

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Tapping Data – Metric Heli-Coil taps in various types and styles produce holes for Tolerance Classes 4H5H or 3B and 5H or 2B for use in the general range of aluminums, magnesiums, mild steels, free machining stainless steels and other free machining materials.

The tapped hole must be held within the stated pitch diameter limits for the required Tolerance Class of fit for the installed Heli-Coil insert. For Standard (free running inserts), a tolerance class 5H or 2B is recommended. For Screw-Locking inserts, a tolerance class 4H5H or 3B is recommended in order to develop higher locking torques.

Conventional shop practice and production procedures, speeds, feeds and lubricants should be used in combination with proper fixturing and good tapping machines or tapping heads.

TABLE VIII – METRIC TAPPED HOLE DIMENSIONS Nominal Thread Size

Countersink “M” Diameter (120º ±5º included angle) Min.

Max.

Pitch Diameter Min.

4H5H Max.

“C” MINIMUM TAPPING DEPTH

5H Max.

Minor Diameter (after tapping)

INSERT LENGTH 1 Dia.

1-1/2 Dia.

2 Dia.

2-1/2 Dia.

3 Dia.

Min.

Max.

Tap Major Dia. Max.

METRIC COARSE M2X0.4

2.30

2.70

2.260

2.295

2.310

2.4

3.4

4.4

5.4

6.4

2.087

2.199

2.581

M2.2x0.45

2.40

2.90

2.492

2.532

2.547

2.7

3.8

4.9

6.0

7.1

2.297

2.422

2.845

M2.5x0.45

2.90

3.40

2.792

2.832

2.847

3.0

4.2

5.5

6.7

8.0

2.597

2.722

3.145

M3x0.5

3.40

4.00

3.325

3.367

3.384

3.5

5.0

6.5

8.0

9.5

3.108

3.248

3.716

M3.5x0.6

4.10

4.70

3.890

3.940

3.959

4.1

5.9

7.6

9.4

11.1

3.630

3.790

4.354

M4x0.7

4.70

5.30

4.455

4.509

4.529

4.7

6.7

8.7

10.7

12.7

4.152

4.332

5.007

M5x0.8

5.80

6.40

5.520

5.577

5.597

5.8

8.3

10.8

13.3

15.8

5.174

5.374

6.145

M6x1

7.10

7.70

6.650

6.719

6.742

7.0

10.0

13.0

16.0

19.0

6.217

6.407

7.422

M7x1

8.10

8.70

7.650

7.719

7.742

8.0

11.5

15.0

18.5

22.0

7.217

7.407

8.422

M8x1.25

9.50

10.10

8..812

8.886

8.911

9.3

13.3

17.3

21.3

25.3

8.271

8.483

9.787

M10x1.5

11.80

12.40

10.974

11.061

11.089

11.5

16.5

21.5

26.5

31.5

10.324

10.560

12.131

M12x1.75

14.20

14.80

13.137

13.236

13.271

13.8

19.8

25.8

31.8

37.8

12.379

12.644

14.478

M14x2

16.50

17.10

15.299

15.406

15.444

16.0

23.0

30.0

37.0

44.0

14.433

14.733

16.822

M16x2

18.50

19.10

17.299

17.406

17.444

18.0

26.0

34.0

42.0

50.0

16.433

16.733

18.822

M18x2.5

21.20

21.80

19.624

19.738

19.778

20.5

29.5

38.5

47.5

56.5

18.541

18.896

21.513

M20x2.5

23.20

23.80

21.624

21.738

21.778

22.5

32.5

42.5

52.5

62.5

20.541

20.896

23.513

M22x2.5

25.20

25.50

23.624

23.738

23.778

24.5

35.5

46.5

57.5

68.5

22.541

22.896

25.513

M24x3

27.90

28.50

25.948

26.093

26.135

27.0

39.0

51.0

63.0

75.0

24.649

25.049

28.238

M27x3

30.90

31.50

28.948

29.093

29.135

30.0

43.5

57.0

70.5

84.0

27.649

28.049

31.238

M30x3.5

34.60

35.20

32.273

32.428

32.472

33.5

48.5

63.5

78.5

93.5

30.757

31.207

34.925

M33x3.5

37.60

38.20

35.273

35.428

35.472

36.5

53.0

69.5

86.0

102.5

33.757

34.207

37.925

M36x4

41.30

41.90

38.598

38.763

38.809

40.0

58.0

76.0

94.0

112.0

36.866

37.341

41.615

M39x4

44.30

44.90

41.598

41.763

41.809

43.0

62.5

82.0

101.5

121.0

39.866

40.341

44.615

METRIC FINE M8x1

9.10

9.70

8.650

8.719

8.742

9.0

13.0

17.0

21.0

25.0

8.217

8.407

9.422

M10x1

11.10

11.70

10.650

10.719

10.742

11.0

16.0

21.0

26.0

31.0

10.217

10.407

11.422 11.787

M10x1.25

11.50

12.10

10.812

10.886

10.911

11.3

16.3

21.3

26.3

31.3

10.271

10.483

M12x1.25

13.50

14.10

12.812

12.898

12.926

13.3

19.3

25.3

31.3

37.3

12.271

12.483

13.787

M12x1.5

13.80

14.40

12.974

13.067

13.099

13.5

19.5

25.5

31.5

37.5

12.324

12.560

14.131

M14x1.5

15.80

16.40

14.974

15.067

15.099

15.5

22.5

29.5

36.5

43.5

14.324

14.560

16.131

M16x1.5

17.80

18.40

16.974

17.067

17.099

17.5

25.5

33.5

41.5

49.5

16.324

16.560

18.131

M18x1.5

19.80

20.40

18.974

19.067

19.099

19.5

28.5

37.5

46.5

55.5

18.324

18.560

20.131

M20x1.5

21.80

22.40

20.974

21.067

21.099

21.5

31.5

41.5

51.5

61.5

20.324

20.560

22.131

M22x1.5

23.80

24.40

22.974

23.067

23.099

23.5

34.5

45.5

56.5

67.5

22.324

22.560

24.131

M18x2

20.50

21.10

19.299

19.406

19.444

20.0

29.0

38.0

47.0

56.0

18.433

18.733

20.822

M20x2

22.50

23.10

21.299

21.406

21.444

22.0

32.0

42.0

52.0

62.0

20.433

20.733

22.822

M22x2

24.50

25.10

23.299

23.406

23.444

24.0

35.0

46.0

57.0

68.0

22.433

22.733

24.822

M24x2

26.50

27.10

25.299

25.414

25.454

26.0

38.0

50.0

62.0

74.0

24.433

24.733

26.822

M27x2

29.50

30.10

28.299

28.414

28.454

29.0

42.5

56.0

69.5

83.0

27.433

27.733

29.822

M30x2

32.50

33.10

31.299

31.414

31.454

32.0

47.0

62.0

77.0

92.0

30.433

30.733

32.822

M33x2

35.50

36.10

34.299

34.414

34.454

35.0

51.5

68.0

84.5

101.0

33.433

33.733

35.822

M36x2

38.50

39.10

37.299

37.414

37.454

38.0

56.0

74.0

92.0

110.0

36.433

36.733

38.822

M39x2

41.50

42.10

40.299

40.414

40.454

41.0

60.5

80.0

99.5

119.0

39.433

39.733

41.822

M36x3

39.90

40.50

37.948

38.093

38.135

39.0

57.0

75.0

93.0

111.0

36.649

37.049

40.238

M39x3

42.90

43.50

40.948

41.093

41.135

42.0

61.5

81.0

100.5

120.0

39.649

40.049

43.238

- 21 -

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STI Tap Part Numbers – Inch SPIRAL POINTED – PLUG & SPIRAL FLUTE. Used for efficient chip disposal in production tapping operations. Available in sizes up to 1/2".

STRAIGHT FLUTE TAPS. Widely used for general hand and machine tapping operations. Available in sizes up to 1-1/2". » Plug Style – (4 Thread Chamfer). Used in thru holes and blind holes that allow for ample chip clearance. Easier to start and require less tapping torque than bottoming taps.

» Spiral Pointed – Plug (4 Thread Chamfer). Widely used in long thru holes and blind holes with ample chip clearance. Incorporates an angular grind at the point end of the tap which shears chips and drives them forward of the tap. They are free cutting and provide increased tap strength. Not recommended for abrasive materials.

» Bottoming Style – (2 Thread Chamfer). Used in blind holes drilled to a minimum depth that requires threads be close to the bottom of the hole.

TABLE IX – HELI-COIL STI TAP PART NUMBERS Nominal Thread Size

Plug 3B

Straight Flute Bottoming 2B

3B

Spiral Point Plug

2B

3B

High Spiral Flute Bottoming

2B

3B

2B

Roughing Tap

UNIFIED COARSE THREAD (UNC) 1 (.073)-64

01CPB

01CPA

01CBB

01CBA

01CSB

01CSA

5905-01

6905-01

2 (.086)-56

02CPB

02CPA

02CBB

02CBA

02CSB

02CSA

5905-02

6905-02

3 (.099)-48

03CPB

03CPA

03CBB

03CBA

03CSB

03CSA

5905-03

6905-03

4 (.112)-40

04CPB

04CPA

04CBB

04CBA

04CSB

04CSA

5905-04

6905-04

5 (.125)-40

05CPB

05CPA

05CBB

05CBA

05CSB

05CSA

5905-05

6905-05

6 (.138)-32

06CPB

06CPA

06CBB

06CBA

06CSB

06CSA

5905-06

6905-06

8 (.164)-32

2CPB

2CPA

2CBB

2CBA

2CSB

2CSA

5905-2

6905-2

10 (.190)-24

3CPB

3CPA

3CBB

3CBA

3CSB

3CSA

5905-3

6905-3

12 (.216)-24

1CPB

1CPA

1CBB

1CBA

1CSB

1CSA

5905-1

6905-1

1/4 (.2500)-20

4CPB

4CPA

4CBB

4CBA

4CSB

4CSA

5905-4

6905-4

5/16 (.3125)-18

5CPB

5CPA

5CBB

5CBA

5CSB

5CSA

5905-5

6905-5

3/8 (.3750)-16

6CPB

6CPA

6CBB

6CBA

6CSB

6CSA

5905-6

6905-6

7/16 (.4375)-14

7CPB

7CPA

7CBB

7CBA

7CSB

7CSA

5905-7

6905-7

7CRU

1/2 (.5000)-13

8CPB

8CPA

8CBB

8CBA

8CSB

8CSA

5905-8

6905-8

8CRU

9/16 (.5625)-12

187-9

38187-9

4187-9

43187-9

9CRU

5/8 (.6250)-11

8187-10

18187-10

10187-10

20187-10

10CRU

3/4 (.7500)-10

8187-12

18187-12

10187-12

20187-12

12CRU

7/8 (.8750)-9

8187-14

18187-14

10187-14

20187-14

14CRU

1 (1.0000)-8

8187-16

18187-16

10187-16

20187-16

16CRU

1-1/8 (1.1250)-7

8187-18

18187-18

10187-18

20187-18

1-1/4 (1.2500)-7

8187-20

18187-20

10187-20

20187-20

1-3/8 (1.3750)-6

8187-22

18187-22

10187-22

20187-22

1-1/2 (1.5000)-6

8187-24

18187-24

10187-24

20187-24

2 (.086)-64

02FPB

02FPA

02FBB

02FBA

02FSB

02FSA

5906-02

6906-02

3 (.099)-56

03FPB

03FPA

03FBB

03FBA

03FSB

03FSA

5906-03

6906-03

4 (.112)-48

04FPB

04FPA

04FBB

04FBA

04FSB

04FSA

5906-04

6906-04

6 (.138)-40

06FPB

06FPA

06FBB

06FBA

06FSB

06FSA

5906-06

6906-06

8 (.164)-36

2FPB

2FPA

2FBB

2FBA

2FSB

2FSA

5906-2

6906-2

10 (.190)-32

3FPB

3FPA

3FBB

3FBA

3FSB

3FSA

5906-3

6906-3

1/4 (.2500)-28

4FPB

4FPA

4FBB

4FBA

4FSB

4FSA

5906-4

6906-4

5/16 (.3125)-24

5FPB

5FPA

5FBB

5FBA

5FSB

5FSA

5906-5

6906-5

3/8 (.3750)-24

6FPB

6FPA

6FBB

6FBA

6FSB

6FSA

5906-6

6906-6

7/16 (.4375)-20

7FPB

7FPA

7FBB

7FBA

7FSB

7FSA

5906-7

6906-7

7FRU

1/2 (.5000)-20

8FPB

8FPA

8FBB

8FBA

8FSB

8FSA

5906-8

6906-8

8FRU

9/16 (.5625)-18

38193-9

18193-9

43193-9

20193-9

9FRU

5/8 (.6250)-18

8193-10

18193-10

10193-10

20193-10

10FRU

3/4 (.7500)-16

8193-12

18193-12

10193-12

20193-12

12FRU

7/8 (.8750)-14

8193-14

18193-14

10193-14

20193-14

14FRU

1 (1.0000)-14

8193-16

18193-16

10193-16

20193-16

16FRU

1 (1.0000)-12

8193-161

18193-161

10193-161

20193-161

161FRU

1-1/8 (1.1250)-12

8193-18

18193-18

10193-18

20193-18

1-1/4 (1.2500)-12

8193-20

18193-20

10193-20

20193-20

1-3/8 (1.3750)-12

8193-22

18193-22

10193-22

20193-22

1-1/2 (1.5000)-12

8193-24

18193-24

10193-24

20193-24

UNIFIED FINE THREAD (UNF)

- 22 -

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STI Tap Dimensions – Inch » High Spiral Flute – Bottoming (2 Thread Chamfer). Have spiral flute for efficiently pulling stringy chips out of deep or blind holes in soft materials. ROUGHING TAPS. Are available for difficult tapping operations where it is desirable to reduce the load on the finishing tap. Available in sizes 7/16 – 1".

TABLE X – HELI-COIL STI TAP DIMENSIONS Nominal Thread Size

Tap Dimensions Length Overall A

Length of Thread B

Length of Square C

Number of Flutes Max. Dia. of Shank D

Max. Size of Square

Straight Flute

H Limits

Spiral Point Plug

Spiral Flute Bott.

Tap Style*

3B

2B

UNIFIED COARSE THREAD (UNC) 1 (.073)-64

1-13/16

1/2

3/16

.141

.110

3

2

2

1

H1

H2

2 (.086)-56

1-7/8

9/16

3/16

.141

.110

3

2

2

1

H1

H2

3 (.099)-48

1-15/16

5/8

3/16

.141

.110

3

2

2

1

H1

H2

4 (.112)-40

2

11/16

3/16

.141

.110

3

2

2

1

H1

H2

5 (.125)-40

2-1/8

3/4

1/4

.168

.131

3

2

3

1

H1

H2

6 (.138)-32

2-3/8

7/8

1/4

.194

.152

3

2

3

1

H2

H3

8 (.164)-32

2-3/8

15/16

9/32

.220

.165

3

2

3

1

H2

H3

10 (.190)-24

2-1/2

1

5/16

.255

.191

3

2

3

2

H2

H3

12 (.216)-24

2-23/32

1-1/8

3/8

.318

.238

3

2

3

2

H2

H3

1/4 (.2500)-20

2-23/32

1-1/8

3/8

.318

.238

3

2

3

2

H2

H3

5/16 (.3125)-18

2-15/16

1-1/4

7/16

.381

.286

4

3

3

2

H3

H4

3/8 (.3750)-16

3-3/8

1-21/32

7/16

.367

.275

4

3

3

3

H3

H4

7/16 (.4375)-14

3-19/32

1-21/32

1/2

.429

.322

4

3

4

3

H3

H4

1/2 (.5000)-13

3-13/16

1-13/16

9/16

.480

.360

4

3

4

3

H3

H4

9/16 (.5625)-12

4-1/32

1-13/16

5/8

.542

.406

4

3

H3

H4

5/8 (.6250)-11

4-1/4

2

11/16

.590

.442

4

3

H3

H4

3/4 (.7500)-10

4-11/16

2-7/32

3/4

.697

.523

4

3

H3

H5

7/8 (.8750)-9

5-1/8

2-1/2

13/16

.800

.600

4

3

H3

H5

1 (1.000)-8

5-3/4

2-9/16

1

1.021

.766

4

3

H4

H6

1-1/8 (1.1250)-7

6-1/16

3

1-1/16

1.108

.831

4

3

H4

H6

1-1/4 (1.2500)-7

6-3/8

3

1-1/8

1.233

.925

4

3

H4

H6

1-3/8 (1.3750)-6

6-11/16

3-3/16

1-1/8

1.305

.979

6

3

H6

H8

1-1/2 (1.5000)-6

7

3-3/16

1-1/4

1.430

1.072

6

3

H6

H8

UNIFIED FINE THREAD (UNF) 2 (.086)-64

1-7/8

9/16

3/16

.141

.110

3

2

2

1

H1

H2

3 (.099)-56

1-15/16

5/8

3/16

.141

.110

3

2

2

1

H1

H2

4 (.112)-48

2

11/16

3/16

.141

.110

3

2

2

1

H1

H2

6 (.138)-40

2-1/8

3/4

1/4

.168

.131

3

2

3

1

H1

H2

8 (.164)-36

2-3/8

15/16

9/32

.220

.165

3

2

3

1

H1

H2

10 (.190)-32

2-1/2

1

5/16

.255

.191

3

2

3

2

H2

H3

1/4 (.2500)-28

2-23/32

1-1/8

3/8

.318

.238

3

2

3

2

H2

H3

5/16 (.3125)-24

2-15/16

1-1/4

7/16

.381

.286

4

3

3

2

H2

H3

3/8 (.3750)-24

3-5/32

1-7/16

13/32

.323

.242

4

3

3

3

H2

H3

7/16 (.4375)-20

3-3/8

1-21/32

7/16

.367

.275

4

3

3

3

H3

H4

1/2 (.5000)-20

3-19/32

1-21/32

1/2

.429

.322

4

3

4

3

H3

H4

9/16 (.5625)-18

3-13/16

1-13/16

9/16

.480

.360

4

3

H3

H4

5/8 (.6250)-18

4-1/32

1-13/16

5/8

.542

.406

4

3

H3

H4

3/4 (.7500)-16

4-15/32

2

11/16

.652

.489

4

3

H3

H4

7/8 (.8750)-14

5-1/8

2-1/2

13/16

.800

.600

4

3

H3

H4

1 (1.0000)-14

5-7/16

2-9/16

7/8

.896

.672

4

3

H4

H6

1 (1.0000)-12

5-7/16

2-9/16

7/8

.896

.672

4

3

H4

H6

1-1/8 (1.1250)-12

5-3/4

2-9/16

1

1.021

.766

6

3

H4

H6

1-1/4 (1.2500)-12

6-1/16

3

1-1/16

1.108

.831

6

3

H4

H6

1-3/8 (1.3750)-12

6-3/8

3

1-1/8

1.233

.925

6

3

H4

H6

1-1/2 (1.5000)-12

6-11/16

3-3/16

1-1/8

1.305

.979

6

3

H4

H6

* All bottoming taps have male center on thread end removed.

- 23 -

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®

STI Tap Part Numbers – Metric

STRAIGHT FLUTE TAPS. Widely used for general hand and machine tapping operations. Available in sizes up to 39mm. » Plug Style – (4 Thread Chamfer). Used in thru holes and in blind holes that allow for ample chip clearance. Easier to start and require less tapping torque than bottoming taps. » Bottoming Style – (2 Thread Chamfer). Used in blind holes drilled to a minimum depth that requires threads be close to the bottom of the hole.

SPIRAL POINTED – PLUG & SPIRAL FLUTE. Used for efficient chip disposal in production tapping operations. Available in sizes up to 12mm. » Spiral Pointed – Plug (4 Thread Chamfer). Used widely in long thru holes and blind holes with ample chip clearance. Incorporates an angular grind at the point end of the tap which shears chips and drives them forward of the tap. They are free cutting and provide increased tap strength. Not recommended for abrasive materials.

TABLE XI – HELI-COIL STI TAP PART NUMBERS Nominal Thread Size

Plug 4H5H

Straight Flute Bottoming 5H

4H5H

Spiral Point Plug

5H

4H5H

5H

High Spiral Flute Bottoming 4H5H

5H

Roughing Tap

METRIC COARSE M2x0.4

4687-2

2087-2

4693-2

2093-2

4863-2

4763-2

5081-2

4681-2

M2.2x0.45

4687-2.2

2087-2.2

4693-2.2

2093-2.2

4863-2.2

4763-2.2

5081-2.2

4681-2.2

M2.5x0.45

4687-2.5

2087-2.5

4693-2.5

2093-2.5

4863-2.5

4763-2.5

5081-2.5

4681-2.5

M3x0.5

4687-3

2087-3

4693-3

2093-3

4863-3

4763-3

5081-3

4681-3

M3.5x0.6

4687-3.5

2087-3.5

4693-3.5

2093-3.5

4863-3.5

4763-3.5

5081-3.5

4681-3.5

M4x0.7

4687-4

2087-4

4693-4

2093-4

4863-4

4763-4

5081-4

4681-4

M5x0.8

4687-5

2087-5

4693-5

2093-5

4863-5

4763-5

5081-5

4681-5

M6x1

4687-6

2087-6

4693-6

2093-6

4863-6

4763-6

5081-6

4681-6

M7x1

4687-7

2087-7

4693-7

2093-7

4863-7

4763-7

5081-7

4681-7

M8x1.25

4687-8

2087-8

4693-8

2093-8

4863-8

4763-8

5081-8

4681-8

M10x1.5

4687-10

2087-10

4693-10

2093-10

4863-10

4763-10

5081-10

4681-10

M12x1.75

4687-12

2087-12

4693-12

2093-12

4863-12

4763-12

5081-12

4681-12

M14x2

4687-14

2087-14

4693-14

2093-14

3765-14

M16x2

4687-16

2087-16

4693-16

2093-16

3765-16

M18x2.5

4687-18

2087-18

4693-18

2093-18

3765-18

M20x2.5

4687-20

2087-20

4693-20

2093-20

3765-20

M22x2.5

4687-22

2087-22

4693-22

2093-22

3765-22

M24x3

4687-24

2087-24

4693-24

2093-24

3765-24

M27x3

4687-27

2087-27

4693-27

2093-27

M30x3.5

4687-30

2087-30

4693-30

2093-30

M33x3.5

4687-33

2087-33

4693-33

2093-33

M36x4

4687-36

2087-36

4693-36

2093-36

M39x4

4687-39

2087-39

4693-39

2093-39

M8x1

5484-8

4984-8

5486-8

4986-8

4864-8

4764-8

5066-8

4666-8

M10x1

5484-10

4984-10

5486-10

4986-10

4864-10

4764-10

5066-10

4666-10

M10x1.25

5444-10

4944-10

5445-10

4945-10

4865-10

4765-10

5067-10

4667-10

M12x1.25

5444-12

4944-12

5445-12

4945-12

4865-12

4765-12

5067-12

4667-12

3767-12

M12x1.5

5476-12

4976-12

5477-12

4977-12

4866-12

4766-12

5068-12

4668-12

3768-12

M14x1.5

5476-14

4976-14

5477-14

4977-14

3768-14

M16x1.5

5476-16

4976-16

5477-16

4977-16

3768-16

M18x1.5

5476-18

4976-18

5477-18

4977-18

3768-18

M20x1.5

5476-20

4976-20

5477-20

4977-20

3768-20

M22x1.5

5476-22

4976-22

5477-22

4977-22

3768-22

M18x2

5490-18

4990-18

5492-18

4992-18

3769-18

M20x2

5490-20

4990-20

5492-20

4992-20

3769-20

M22x2

5490-22

4990-22

5492-22

4992-22

3769-22

M24x2

5490-24

4990-24

5492-24

4992-24

3769-24

M27x2

5490-27

4990-27

5492-27

4992-27

M30x2

5490-30

4990-30

5492-30

4992-30

M33x2

5490-33

4990-33

5492-33

4992-33

M36x2

5490-36

4990-36

5492-36

4992-36

M39x2

5490-39

4990-39

5492-39

4992-39

M36x3

5496-36

4996-36

5497-36

4997-36

M39x3

5496-39

4996-39

5497-39

4997-39

3765-12

METRIC FINE

- 24 -

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STI Tap Dimensions* – Metric » High Spiral Flute – Bottoming (2 Thread Chamfer). Have spiral flute for efficiently pulling stringy chips out of deep or blind holes in soft materials. ROUGHING TAPS. Are available for difficult tapping operations where it is desirable to reduce the load on the finishing tap. Available in sizes 12mm thru 24mm.

CUSTOM STI TAPS (Inch and Metric Series) Taps made to alternate limits, configurations, or to cut difficult materials, or for very high production are available upon request. The following data should be provided at the time of ordering: » Thread size » Finished hole class of fit. Example: 4H5H, 3B, custom pre-plate requirements.

» Material to be cut, and its hardness. » Hole configuration. Example: Thru or Blind including length of drilled and tapped hole. » Type tap. Example: Plug or Bottoming Straight Flute, Spiral Point, Spiral Flute. » Special features. Example: Length, Shank Diameter, Chamfer Length, Tap Material. » Special coating of tap.

TABLE XII– HELI-COIL STI TAP DIMENSIONS Nominal Thread Size

Tap Dimensions Length Overall A

Length of Thread B

Length of Square C

Number of Flutes Max. Dia. of Shank D

Max. Size of Square

Straight Flute

Spiral Point Plug

Spiral Flute Bott.

H Limits Tap Style*

4H5H

5H

METRIC COARSE M2x0.4

46.04

12.70

4.77

3.62

2.90

3

2

2

1

H1

M2.2X0.45

47.62

14.29

4.76

3.62

2.89

3

2

2

1

H1

H2 H2

M2.5x0.45

49.21

15.88

4.76

3.62

2.89

3

2

2

1

H1

H2

M3x0.5

50.80

17.46

4.76

3.62

2.89

3

2

2

1

H1

H2

M3.5x0.6

53.98

19.05

6.35

4.31

3.43

3

3

3

1

H1

H2

M4x0.7

60.32

22.22

6.35

4.97

3.96

3

3

3

1

H2

H3

M5x0.8

63.50

25.40

7.94

6.52

4.95

3

3

3

2

H2

H3 H3

M6x1

69.06

28.58

9.52

8.12

6.14

4

3

3

2

H2

M7x1

74.61

31.75

11.11

9.72

7.36

4

3

3

2

H2

H3

M8x1.25

74.61

31.75

11.11

9.72

7.36

4

3

3

2

H2

H3

M10x1.5

85.72

42.07

11.11

9.36

7.08

4

3

3

3

H3

H4

M12x1.75

91.28

42.07

12.70

10.94

8.33

4

3

4

3

H3

H4

M14x2

102.39

46.04

15.88

13.82

10.46

4

3

H3

H5

M16x2

107.95

50.80

17.46

15.04

11.38

4

3

H3

H5

M18x2.5

119.06

56.36

19.05

17.75

13.43

4

3

H3

H5

M20x2.5

124.62

56.36

19.05

19.35

14.63

4

3

H3

H5

M22X2.5

130.18

63.50

20.64

20.37

15.39

4

3

H3

H5

M24X3

138.11

65.09

22.22

22.81

17.27

4

3

H4

H6

M27X3

146.05

65.09

25.40

26.03

19.66

4

3

H4

H6

M30X3.5

153.99

76.20

26.99

28.19

21.31

4

3

H4

H6

M33X3.5

161.92

76.20

28.58

31.37

23.70

6

3

H4

H6

M36X4

177.80

80.96

31.75

36.40

27.43

6

3

H6

H8

M39X4

177.80

80.96

31.75

36.40

27.43

6

3

H6

H8 H3

METRIC FINE M8X1

74.61

31.75

11.11

9.72

7.36

4

3

3

3

H2

M10X1

80.71

36.51

10.32

8.24

6.25

4

3

3

3

H2

H3

M10X1.25

85.72

42.07

11.11

9.36

7.08

4

3

3

3

H2

H3

M12X1.25

91.28

42.07

12.70

10.94

8.33

4

3

4

3

H3

H4

M12X1.5

91.28

42.07

12.70

10.94

8.33

4

3

4

3

H3

H4

M14X1.5

96.84

46.04

14.29

12.23

9.29

4

3

H3

H4

M16X1.5

107.95

50.80

17.46

15.04

11.38

4

3

H3

H4

M18X1.5

113.51

50.80

17.46

16.61

12.57

4

3

H3

H4

M20X1.5

119.06

56.36

19.05

17.75

13.43

4

3

H3

H4

M22X1.5

130.18

63.50

20.64

20.37

15.39

4

3

H3

H4

M18X2

113.51

50.80

17.46

16.61

12.57

4

3

H3

H5

M20X2

124.62

56.36

19.05

19.35

14.63

4

3

H3

H5

M22X2

130.18

63.50

20.64

20.37

15.39

4

3

H3

H5

M24X2

130.18

63.50

22.22

22.81

17.27

4

3

H4

H6

M27X2

138.11

65.09

25.40

25.98

19.66

4

3

H4

H6

M30X2

146.05

65.09

26.99

28.19

21.31

4

3

H4

H6

M33X2

153.99

76.20

28.58

31.37

23.70

4

3

H4

H6

M36X2

169.86

80.96

28.58

33.23

25.07

6

3

H6

H8

M39X2

177.80

80.96

31.75

36.40

27.43

6

3

H6

H8

M36X3

169.86

80.96

28.58

33.23

25.07

6

3

H6

H8

M39X3

177.80

80.96

31.75

36.40

27.43

6

3

H6

H8

* See page 23 for dimensional drawings. All bottoming taps have male center on thread end removed.

- 25 -

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Gages – Inch

Is the tapped hole correct? Accuracy of the finished thread when the insert is installed is dependent upon the accuracy of the tapped hole. If the finished tapped hole gages satisfactorily, the installed insert will be within the thread tolerance. It is not necessary to gage the installed insert. After the insert is installed, the GO thread plug gage may not enter freely; however, the insert will always seat itself when the bolt or screw is installed and tightened. (Reference NASM33537). Gage handles and all gage nibs are marked with the extreme product limits for the particular size and class of fit. (See p. 20-21, Tables VII & VIII, Pitch Diameter Limits.) When gaging tapped holes which have been thoroughly cleaned or which have a protective finish applied, the gage should always be lubricated with light oil. HI nib may enter provided a definite drag results on or before 3rd turn from entry – Ref. FED-STD-H28, Screw thread Standards for Federal Services.

Nominal Thread Size

COMPLETE WORKING GAGES

Suggested for Longer Wear Life 3B

COMPLETE REFERENCE GAGES

Suggested as Master Gages

2B 3B 2B

UNIFIED COARSE THREAD (UNC) 1 (.073)-64

3688-01 1442-01 1688-01 1440-01

2 (.086)-56

3688-02 1442-02 1688-02 1440-02

3 (.099)-48

3688-03 1442-03 1688-03 1440-03

4 (.112)-40

3688-04 1442-04 1688-04 1440-04

5 (.125)-40

3688-05 1442-05 1688-05 1440-05

6 (.138)-32

3688-06 1442-06 1688-06 1440-06

8 (.164)-32

3688-2 1442-2 1688-2 1440-2

10 (.190)-24

3688-3 1442-3 1688-3 1440-3

12 (.216)-24

3688-1 1442-1 1688-1 1440-1

1/4 (.2500)-20 3688-4 1442-4 1688-4 1440-4 5/16 (.3125)-18 3688-5 1442-5 1688-5 1440-5 3/8 (.3750)-16 3688-6 1442-6 1688-6 1440-6 7/16 (.4375)-14 3688-7 1442-7 1688-7 1440-7 1/2 (.5000)-13 3688-8 1442-8 1688-8 1440-8 9/16 (.5625)-12 1688-9 1440-9 5/8 (.6250)-11 1688-10 1440-10 3/4 (.7500)-10 1688-12 1440-12 7/8 (.8750)-9 1688-14 1440-14 1 (1.000)-8 1688-16 1440-16 1-1/8 (1.1250)-7 1688-18 1440-18 1-1/4 (1.2500)-7 1688-20 1440-20

Heli-Coil STI Thread Plug Gages for checking the tapped hole are listed in the table at right.

1-3/8 (1.3750)-6 1688-22 1440-22

Working gages provide a guaranteed minimum wear allowance on the pitch diameter of the GO members of two ten thousandths of an inch (.0002). These gages are recommended for production in sizes 1/2 inch and smaller.

2 (.086)-64

3694-02 1443-02 1694-02 1441-02

3 (.099)-56

3694-03 1443-03 1694-03 1441-03

4 (.112)-48

3694-04 1443-04 1694-04 1441-04

6 (.138)-40

3694-06 1443-06 1694-06 1441-06

8 (.164)-36

3694-2 1443-2 1694-2 1441-2

10 (.190)-32

3694-3 1443-3 1694-3 1441-3

Reference gages have pitch diameters on or close to minimum (basic size). They are essentially laboratory or master gages and should be used in case of conflict between two working gages. Conflict can occur when one of the gages has experienced more use and wear.

5/16 (.3125)-24 3694-5 1443-5 1694-5 1441-5

1-1/2 (1.5000)-6 1688-24 1440-24

UNIFIED FINE THREAD (UNF)

1/4 (.2500)-28 3694-4 1443-4 1694-4 1441-4 3/8 (.3750)-24 3694-6 1443-6 1694-6 1441-6 7/16 (.4375)-20 3694-7 1443-7 1694-7 1441-7 1/2 (.5000)-20 3694-8 1443-8 1694-8 1441-8 9/16 (.5625)-18 1694-9 1441-9 5/8 (.6250)-18 1694-10 1441-10 3/4 (.7500)-16 1694-12 1441-12 7/8 (.8750)-14 1694-14 1441-14 1 (1.0000)-14 1694-16 1441-16 1 (1.0000)-12 1694-161 1441-161 1-1/8 (1.1250)-12 1694-18 1441-18 1-1/4 (1.2500)-12 1694-20 1441-20

HELI-COIL STI GAGE WITH GO & HI MEMBERS

1-3/8 (1.3750)-12 1694-22 1441-22 1-1/2 (1.5000)-12 1694-24 1441-24

- 26 -

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Gages – Metric Heli-Coil STI Thread Plug Gages (metric) for checking the tapped hole are listed in chart.

Nominal COMPLETE REFERENCE GAGE Thread Size 4H5H 5H

The complete gage consists of the GO thread plug gage, the HI thread plug gage and the appropriately marked gage handle.

METRIC COARSE M2x0.4

4624-2 1324-2

M2.2X0.45

4624-2.2 1324-2.2

M2.5x0.45

4624-2.5 1324-2.5

M3x0.5

4624-3 1324-3

M3.5x0.6

4624-3.5 1324-3.5

M4x0.7

4624-4 1324-4

M5x0.8

4624-5 1324-5

M6x1

4624-6 1324-6

M7x1

4624-7 1324-7

M8x1.25

4624-8 1324-8

M10x1.5

4624-10 1324-10

M12x1.75

4624-12 1324-12

M14x2

4624-14 1324-14

M16x2

4624-16 1324-16

M18x2.5

4624-18 1324-18

M20x2.5

4624-20 1324-20

M22X2.5

4624-22 1324-22

M24X3

4624-24 1324-24

M27X3

4624-27 1324-27

M30X3.5

4624-30 1324-30

M33X3.5

4624-33 1324-33

M36X4

4624-36 1324-36

M39X4

4624-39 1324-39

®

Accuracy of the finished thread, when the insert is installed, is dependent upon the accuracy of the tapped hole. If the finished tapped hole gages satisfactorily, the installed insert will be within the thread tolerance. It is, therefore, not necessary to gage the installed insert. After the insert is installed, the GO thread plug gage may not enter freely; however, the insert will always seat itself when the bolt or screw is installed and tightened. (Reference MA1567) When gaging tapped holes which have been thoroughly cleaned or which have a protective finish applied, the gage should always be lubricated with light oil. The HI thread plug gage may enter provided that a definite drag results on or before the second turn of entry. (Reference ANSI B1.16)

METRIC FINE M8X1

5416-8 4916-8

M10X1

5416-10 4916-10

M10X1.25

5424-10 4924-10

M12X1.25

5424-12 4924-12

M12X1.5

5480-12 4980-12

M14X1.5

5480-14 4980-14

M16X1.5

5480-16 4980-16

M18X1.5

5480-18 4980-18

M20X1.5

5480-20 4980-20

M22X1.5

5480-22 4980-22

M18X2

5418-18 4918-18

M20X2

5418-20 4918-20

M22X2

5418-22 4918-22

M24X2

5418-24 4918-24

M27X2

5418-27 4918-27

M30X2

5418-30 4918-30

M33X2

5418-33 4918-33

M36X2

5421-36 4921-36

M39X3

5421-39 4921-39

- 27 -

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Tanged Tooling

TOOLS FOR TANGED INSERTS

mandrel and 3 spacers (1 for each length of insert to be installed). The versatility and adaptability of Heli-Coil power inserting tools is shown on p. 32. The tool can be hand held, vertically or horizontally mounted, and adapted to both semi-automatic and fully automatic installation stations. Heli-Coil power inserting tools can be adapted to assembly stations, rotary tables and transfer lines.

Both hand and power tools are available to install tanged inserts. The various tools to install Heli-Coil inserts are presented on the following pages. For production runs, prototype work, salvage, and repair, hand inserting tools are available. For high volume production, power inserting tools are also available. Both types of tools are dimensioned (p.29 & 31) to aid determination of accessibility to the tapped hole.

All Heli-Coil tooling is backed by our extensive expertise and experience in virtually any application. All tools are fully warranteed. In addition, our Application Engineering Department is always available to assist in installation techniques and special tooling (longer or shorter length tools, etc.). For very high production, Heli-Coil will provide for the successful development of automated installation systems.

Both hand and power inserting tools feature a threaded mandrel which engages the insert and provides a positive lead to guide the insert into the tapped hole easily and quickly. Power inserting tools consist of an air motor, adapter and front end assembly. The front end assembly consists of a prewinder,

HAND INSTALLATION TOOLS Heli-Coil manufactures various designs of hand inserting tools. Generally, finer pitch inserts are proportionately larger in the free state than coarse pitch inserts and thus have to be “pre-wound” to a smaller diameter for installation. Large coarse pitch inserts need only a threaded mandrel tool for installation.

TYPE I Threaded Mandrel

Ideal for small production runs; for use with free running and screw locking inserts.

TYPE III Threaded Mandrel

Inserts are wound onto the mandrel prior to installation; threads prevent any cross threading.

- 28 -

TYPE II Prewinder Prewinder reduces the diameter of the insert to that of the tapped hole allowing for easy installation.

TYPE IV Non-Captive Prewinder

Similar to Type III but includes a prewinder to facilitate insert installation process.

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Tanged Hand Installation Tools Nominal Thread Size

Hand Inserting Tools

3 Dia. Lengths thru 7/8 2 Dia. Lengths1" & Up

Tool Type

Nominal Thread Size

IV I I II II II II II II II II II II II III III III III III III III III III

M2x0.4 M2.2x0.45 M2.5x0.45* M3x0.5* M3.5x0.6 M4x0.7 M5x0.8* M6x1 M7x1 M8x1.25 M10x1.5 M12x1.75 M14x2 M16x2 M18x2.5 M20x2.5 M22x2.5 M24x3 M27x3 M30x3.5 M33x3.5 M36x4 M39x4

UNIFIED COARSE 1 (.073)-64 2 (.086)-56 3 (.099)-48 4 (.112)-40* 5 (.125)-40 6 (.138)-32 8 (.164)-32* 10 (.190)-24* 12 (.216)-24 1/4 (.2500)-20 5/16 (.3125)-18 3/8 (.3750)-16 7/16 (.4375)-14 1/2 (.5000)-13 9/16 (.5625)-12 5/8 (.6250)-11 3/4 (.7500)-10 7/8 (.8750)-9 1 (1.0000)-8 1-1/8 (1.1250)-7 1-1/4 (1.2500)-7 1-3/8 (1.3750)-6 1-1/2 (1.5000)-6

7551-01 551-02 551-03 7551-04 7551-05 7551-06 7551-2 7551-3 (M) 7551-1 (M) 7551-4 (M) 7551-5 (M) 7551-6 (M) 7551-7 (M) 7551-8 (M) 3724-9 3724-10 3724-12 3724-14 3724-16 3724-18 3724-20 3724-22 3724-24

Tool Type

METRIC COARSE

TYPE I Threaded Mandrel

TYPE II Prewinder*

UNIFIED FINE 2 (.086)-64 3 (.099)-56 4 (.112)-48 6 (.138)-40 8 (.164)-36 10 (.190)-32 1/4 (.2500)-28 5/16 (.3125)-24 3/8 (.3750)-24 7/16 (.4375)-20 1/2 (.5000)-20 9/16 (.5625)-18 5/8 (.6250)-18 3/4 (.7500)-16 7/8 (.8750)-14 1 (1.0000)-14 1 (1.0000)-12 1-1/8 (1.1250)-12 1-1/4 (1.2500)-12 1-3/8 (1.3750)-12 1-1/2 (1.5000)-12

Hand Inserting Tools 3 Dia. Lengths thru M22 2 Dia. Lengths M24 & Up

7751-2 7751-2.2 7751-2.5 7751-3 7751-3.5 7751-4 7751-5 (M) 7751-6 (M) 7751-7 (M) 7751-8 (M) 7751-10 (M) 7751-12 (M) 7751-14 7751-16 7751-18 7751-20 7751-22 7751-24 7751-27 7751-30 7751-33 7751-36 7751-39

IV I II II II II II II II II II II IV IV III IV III III III III III III III

METRIC FINE

7552-02 7552-03 7552-04 7552-06 7552-2 7552-3 (M) 7552-4 (M) 7552-5 (M) 7552-6 (M) 7552-7 (M) 7552-8 (M) 535-9 535-10 535-12 535-14 535-16 535-161 535-18 535-20 535-22 535-24

IV II II II II II II II II II II IV IV IV IV IV IV IV IV IV IV

M8x1 M10x1 M10x1.25 M12x1.25 M12x1.5 M14x1.5 M16x1.5 M18x1.5 M20x1.5 M22x1.5 M18x2 M20x2 M22x2 M24x2 M27x2 M30x2 M33x2 M36x2 M39x2 M36x3 M39x3

TYPE III Threaded Mandrel

TYPE IV Non-Captive Prewinder

7755-8 7755-10 7756-10 7756-12 7753-12 7753-14 7753-16 7753-18 7753-20 7753-22 7754-18 7754-20 7754-22 7754-24 7754-27 7754-30 7754-33 7754-36 7754-39 7752-36 7752-39

II II II II II IV IV IV IV IV IV IV IV IV IV IV IV IV IV IV IV

* Special tools required to install Phosphor Bronze and Inconel X-750 inserts in these sizes. To order add “-9” to the part number shown. Note: Inserts marked with an "(M)" are available with a steel prewinder. For this option, specify when ordering (e.g., 7551-3M).

HAND INSERTING TOOL DIMENSIONS INCH METRIC A TYPE I - Coarse & Fine 2 3

M2.2

2-7/16 6

B

C

2 3

5/16 5/8

4-5/8 4-5/8 4-5/8 4-5/8 4-5/8 4-5/8 4-5/8 4-5/8

3/8 3/8 3/8 3/8 15/32 33/64 33/64 5/8

2-9/32 2-9/32 2-9/32 2-9/32 2-9/32 2-17/32 2-17/32 3-23/32

9/16" 5/8" 3/4" 7/8" 1" 1-1/8" 1-1/4" 1-3/8"

5

45/64

3-23/32

1-1/2"

TYPE II - Coarse & Fine 4 5 6 8 10 12 1/4" 5/16"

M2.5 M3 M3.5 M4 M5

3/8"

M7 & 8

M6

INCH METRIC A B TYPE II - Coarse & Fine (continued) 7/16" 1/2"

M10 & 11 M12

C

5-1/4 5-1/2

25/32 7/8

3-23/32 3-23/32

M18 M20 M24 M30 M33 M36

4-7/8 4-7/8 4-7/8 4-7/8 4-7/8 6-3/4 6-3/4 6-3/4

1-13/16 2 2-3/8 2-3/4 2-1/8 2-1/2 2-3/4 3

4 4 4 4-1/2 4-1/2 6 6 6

M39

6-3/4

3-1/.4

6

TYPE III - Coarse

- 29 -

INCH METRIC A TYPE IV - Coarse & Fine* 9/16" 5/8" 3/4"

M14* M16* M18

5-3/8 5-3/8 6

B 2-7/8 2-7/8 2-7/8

C 1-1/8 1-1/8 1-1/2

7/8" M20 6-3/8 2-7/8 1-1/2 1-14" M22 5-7/8 2-7/8 1-5/8 1-12" M24 5-7/8 2-7/8 1-5/8 1-1/8" M30 6-5/16 3-1/16 2 1-1/4" M33 6-13/16 3-5/16 2 1-3/8" M36 7-5/16 3-9/16 2-1/4 1-1/2" M39 7-13/16 3-13/16 2-1/4 1-64 M2 2-5/8 3/4 7/16 * M14 & M16 Coarse are Type IV Tools. For metric sizes not shown, see next largest size.

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Tanged Power Installation Tools – Inch

Heli-Coil power tools are available in Inch and Metric sizes #2 (M2.2) thru 1/2"* (M12) for rapid installation of Heli-Coil inserts. Power tools consist of a Front End Assembly, an Adapter and a reversible Air Motor. All three components are ordered separately.



Large Adapter

Small Adapter



FRONT END ASSEMBLY Nominal P/N for P/N for Thread Bulk Inserts Strip Feed Size (2 dia. max.) Inserts

A Front End Assembly consists of a prewinder, mandrel and spacers. Select the adapter that corresponds with the insert size being used. Power tools for strip feed inserts are available in sizes #2 (M2.2) through 5/16" (M6).

PREWINDERS P/N for P/N for Bulk Strip Feed Inserts Inserts MANDRELS UNIFIED COARSE THREAD (UNC)

SPACERS 1 Dia.

1-1/2 Dia.

2 Dia.

2 (.086)-56    

8551-02-15    

8557-02-15

8553-02

8559-02 8560-02 8561-02

4 (.112)-40

8551-04-15

8557-04-15

8553-04

8559-04 8560-04 8561

5 (.125)-40

8551-05-15

8557-05-15

8553-05

8559-05 8560-05 8561

6 (.138)-32

8551-06-15

8557-06-15

8553-06

8559-06 8560-06 8561

8 (.164)-32

8551-2-15

8557-2-15

8553-2

8559-2 8560-2 8561

10 (.190)-24

8551-3-15

8557-3-15

8553-3

8559-3 8560-3 8561

1/4 (.2500)-20

8551-4-15

8557-4-15

8553-4

8559-4 8560-4 8561

5/16 (.3125)-18

8251-5-15

8257-5-15

8253-5

8259-5-10 8259-5-15

3/8 (.3750)-16

8251-6   

8257-6   

8253-6

8259-6-10 8259-6-15 NONE

7/16 (.4375)-14

8251-7   

8257-7   

8253-7

8259-7-10 8259-7-15 REQ’D

1/2(.5000)-13

8251-8   

8257-8   

8253-8

8259-8-10 8259-8-15

Large Adapter Small Adapter

UNIFIED FINE THREAD (UNF) 6 (.138)-40

8552-06-15

8558-06-15

8554-06

8559-06 8560-06 8561

10 (.190)-32

8552-3-15

8558-3-15

8554-3

8559-3 8560-3 8561

1/4 (.2500)-28

8552-4-15

8558-4-15

8554-4

8559-4 8560-4 8561

5/16 (.3125)-24

8252-5-15

8258-5-15

8254-5

8259-5-10 8259-5-15

3/8 (.3750)-24

8252-6   

8258-6   

8254-6

8259-6-10 8259-6-15 NONE

7/16 (.4375)-20

8252-7   

8258-7   

8254-7

8259-7-10 8259-7-15 REQ’D

1/2 (.5000)-20

8252-8   

8258-8   

8254-8

8259-8-10 8259-8-15

*Tools for larger sizes or special applications are available upon request.

Pneumatic Power Tool

Complete Power Tool (Assembled) (All parts are ordered separately)

Air Motor 8510-1

ADAPTERS

Small 8550R (Sizes < 1/4")

Large 8550-1R (Sizes > 1/4")

FRONT END ASSEMBLY

Prewinder

Spacers

Mandrel

- 30 -

Power Tool Holder, Part No. 23537, can be used with or without Strip Feed inserts (with the exception of 2-56 which is used only on strip). Note: Recommended for use with 2-56, M2.2x0.45 & M2.5x0.45 power tool.

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Tanged Power Installation Tools – Metric

Power tools consist of a Front End Assembly, an Adapter and a reversible Air Motor. All three components are ordered individually. A front end assembly consists of a prewinder, mandrel and spacers. Select an Adapter that is compatible with the insert size to be used, and for the size range up thru 6mm or the size range 7mm thru 12mm.

Heli-Coil metric power inserting tools are available in coarse and fine sizes up to 12mm* for rapid installation of standard and screwlock inserts, substantially reducing assembly costs. Strip feed power tools are available in sizes up to 7mm. They speed up assembly, eliminate waste and permit an accurate count. PREWINDERS

FRONT END ASSEMBLY Nominal Thread Size





P/N for P/N for Bulk Inserts Strip Feed (2 dia. max.) Inserts

P/N for Bulk Inserts

SPACERS

P/N for Strip Feed Inserts

MANDRELS

1 Dia.

1-1/2 Dia.

2 Dia.

METRIC COARSE

Large Adapter

Small Adapter

M2.2x0.45    

8751-2.2-15  

8769-2.2-15

8757-2.2

8775-2.2 8776-2.2 8777-2.2

M2.5x0.45 8751-2.5-15 8769-2.5-15

8757-2.5

8775-2.5 8776-2.5 8777

M3x0.5 8751-3-15 8769-3-15 8757-3

8775-3 8776-3 8777

M3.5x0.6 8751-3.5-15 8769-3.5-15 8757-3.5

8775-3.5 8776-3.5 8777

M4x0.7 8751-4-15 8769-4-15 8757-4

8775-4 8776-4 8777

M5x0.8 8751-5-15 8769-5-15 8757-5

8775-5 8776-5 8777

M6x1 8751-6-15 8769-6-15 8757-6

8775-6 8776-6 8777

M7x1

8751-7-15

8769-7-15

8757-7

8777-7-10 8777-7-15



8757-8

8777-8-10 8777-8-15 NONE

M8x1.25   M10x1.5

8751-10   

8769-10   

8757-10

8777-10-10 8777-10-15 REQ’D

M12x1.75

8751-12   

8769-12   

8757-12

8777-12-10 8777-12-15

Large Adapter

METRIC FINE M8x1

8755-8   

8770-8   

8764-8

8777-8-10 8777-8-15

M10x1

8755-10   

8770-10   

8764-10

8777-10-10 8777-10-15 NONE

M10x1.25

8756-10   

8758-10   

8759-10

8777-10-10 8777-10-15 REQ'D

M12x1.25

8756-12   

8758-12   

8759-12

8777-12-10 8777-12-15

M12x1.5

8753-12   

8773-12   

8774-12

8777-12-10 8777-12-15

*Tools for larger sizes or special applications are available upon request.

For evaluating space required for installing Heli-Coil inserts with standard manual, pneumatic and electronic inserting tools and tang break-off tools, the diagrams on p. 29 & 31 give dimensions of standard Heli-Coil tooling.

Pneumatic Power Tool

For special variations or adaptations, contact our Applications Engineers at (866) 364-2781.

PNEUMATIC POWER TOOL DIMENSIONS

SIZE INCH

METRIC

A B

A

B C D E F G H

FOR BULK INSERTS FOR STRIP FEED INSERTS

2 M2.2 5/16 7/16 4 M2.5 3/8 15/16 5 M3 3/8 15/16 6 M3.5 1/2 15/16 8 M4 1/2 15/16 10 M5 1/2 15/16 1/4" M6 5/8 1-3/8 5/16" M7 & M8 11/16 1-1/8 3/8" 11/16 1-11/32 7/16" M10 3/4 1-17/32 1/2" M12 13/16 1-25/32

- 31 -

23/32 1-1/8 1-3/8 3-3/16 1-1/4 4-7/16 23/32 1-1/8 1-3/8 3-3/16 1-1/4 4-7/16 2332 1-1/8 1-3/8 3-3/16 1-1/4 4-7/16 23/32 1-1/8 1-3/8 3-3/16 1-1/4 4-7/16 23/32 1-1/8 1-3/8 3-3/16 1-1/4 4-7/16 23/32 1-1/8 1-3/8 3-3/16 1-1/4 4-7/16 23/32 1-1/8 1-3/8 3-3/16 1-1/4 4-7/16 1" 1-9/16 1-3/8 4-7/16 1-1/4 5-3/4 1" 1-9/16 1-7/8 4-3/4 1-1/4 6-1/32 1" 1-9/16 2-1/4 5-1/8 1-1/4 6-13/32 1" 1-9/16 1-1/2 5-13/32 1-1/4 6-11/16

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Tanged Power Installation Tools

Electronic Power Installation Tool Heli-Coil offers an electronic power tool where electric power is preferred over air. The slender configuration of the mandrels allows them to reach into constricted areas. Electric power meets the requirements of clean room operations. Operators prefer electric power because it is quieter. The electronic tool is Electronic Tool Mandrel Assembly lighter to minimize operator fatigue. Mandrel Insert Thread Mandrel Assembly assemblies are available to install the sizes Size (UNC) (for bulk inserts) of Heli-Coil inserts listed in the chart. 2 (.086)-56 8051-02

Application Note: Variations in Mandrel Assembly dimensions and threads are available on a special order basis. Please contact Heli-Coil Applications Engineering Department at (866) 364-2781 to discuss your application.



4 (.112)-40



6 (.138)-32

8051-06



8 (.164)-32

8051-2



10 (.190)-24

8051-3



10 (.190)-32

10089-3



1/4-20

Power Supply P/N 8050-50

Power Cord P/N 8050-50-5

8051-04

Mandrel (see table)

8051-4

Note: Only available in inch. 10-32 and 1/4-20 require larger driver (P/N 8050-650C).

Mandrel Driver P/N 8050-400C P/N 8050-650C

Pneumatic Power Tool Installation Kit This Heli-Coil power tool installation kit (8522) contains an Air Motor (8510-1), adapter, tools, a filter-regulator-lubricator, oil, two quick disconnect fittings, and Power Tools Kit Small Large wrenches. All are packed in a portable Kit Types Part# Adapter Adapter molded box with easy-to-follow operating Small Adapter Set 8522 P Large Adapter Set 8521 P instructions. Front End Assemblies may Combination Set 8520 P P be ordered separately to fit the sizes of Heli-Coil inserts to be installed.

Cordless Electronic Tool The Heli-Coil Cordless Tool is a complete kit (7200) that includes a driver, 2 batteries (7200-20) and mandrel chuck all in a durable metal box. The cordless tool is portable, lightweight, has adjustable torque and uses standard Heli-Coil electronic tool installation mandrels for quick setup.

Power Tool Holder The Power Tool Holder 23537 is mounted on a bench and the appropriate air motor is attached to a movable arm. A mounting arm is also provided for attaching reels of strip-feed inserts. This configuration ensures accurate vertical (square to work surface) installations of Heli-Coil inserts in relatively large parts. The tool holder is capable of installing inserts within a radius of 26 inches as well as on multiple planes.

- 32 -

Note: Recommended for use with the 2-56, M2.2x0.45 and M2.5x0.45 air tools. It also may be used with the Heli-Coil Electronic Inserting Tool.

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Tang Removal/Extraction Tools Heli-Coil Tang Break-Off Tools The driving tangs of Heli-Coil tanged inserts must be removed to eliminate their interference with the end of the assembled bolt. Heli-Coil tang break-off tools are available for use with inserts through 1/2 inch and 12mm metric nominal diameter. Their operation is automatic, having a spring loaded, easily triggered punch that strikes a sharp, uniform blow against the tang of the installed insert. The tool can be operated with one hand.



Nominal Thread Size

Tool Replacement Part No. Punch Part No.

METRIC COARSE

UNIFIED COARSE THREAD (UNC) 1 (.073)-64

3695-01

3697-01

M2x0.4

4238-2 3697-01

2 (.086)-56

3695-02

3697-02

M2.2x0 45

4238-2.2

3 (.099)-48

3695-02

3697-02

M2.5x0.45

4238-2.2 3697-02

4 (.112)-40

3695-04

3697-04

M3x0.5

4238-3 3697-04

5 (.125)-40

3695-04

3697-04

M3.5x0.6

4238-3 3697-04

6 (.138)-32

3695-06

3697-06

M4x0.7

4238-4 3697-2

8 (.164)-32

3695-2

3697-2

M5x0.8

4238-5 3697-3

10 (.190)-24

3695-3

3697-3

M6x1

4238-6 3697-4

12 (.216)-24

3695-3

3697-3

M7x1

4238-7 4436-7

1/4 (.2500)-20

3695-4

3697-4

M8x1.25

4238-8 3643-5

5/16 (.3125)-18

3695-5

3643-5

M10x1.25

4238-10 4436-10

3/8 (.3750)-16

3695-6

3643-6

M12x1.75

4238-12 4436-12

7/16 (.4375)-14

3695-7

3643-7

1/2 (.5000)-13

3695-8

3643-8

3697-02

METRIC FINE

UNIFIED FINE THREAD (UNF)

M8x1

4238-8 3643-5

M10x1

4238-10 4436-10

M10x1.25

4238-10 4436-10

M12x1.25

4238-12 4436-12

M12x1.5

4238-12 4436-12

2 (.086)-64

3695-02

3697-02

3 (.099)-56

3695-02

3697-02

4 (.112)-48

3695-04

3697-04

6 (.138)-40

3695-06

3697-06

8 (.164)-36

3695-2

3697-2

10 (.190)-32

3695-3

3697-3

1/4 (.2500)-28

3695-4

3697-4

5/16 (.3125)-24

3692-5

3645-5

For sizes larger than 1/2" or 12mm, use long nose

3/8 (.3750)-24

3692-6

3645-6

pliers. Bend tang up and down to snap off at notch.

7/16 (.4375)-20

3692-7

3645-7

1/2 (.5000)-20

3692-8

3645-8

Heli-Coil Extracting Tools

Note: Tang break-off tools will break-off tangs thru 2 diameter lengths.

Nominal Thread Size Inch Metric

Occasionally Heli-Coil inserts must be removed. Inserts can be removed manually with little effort. This is done by inserting the blade of the extracting tool into the Heli-Coil insert so that the V section of the blade is toward the top end of the insert. Strike the head of the tool with a light blow. Maintaining a steady pressure of blade against insert, turn the extracting tool counterclockwise until the insert is removed.

Nominal Thread Size

Tool Replacement Part No. Punch Part No.

Extracting Tool Part No.

1

M2 1227-01

2

M2.2 1227-02

3 thru #8

M2.5 thru M4

1227-06

10 thru 3/8"

M5 thru M10

1227-6

7/16" thru 1"

M11 thru M24

1227-16

1-1/8" thru 1-1/2"

M27 thru M39

1227-24

Top View Shown

Right & wrong blade positions of insert extracting tool.

- 33 -

RIGHT

WRONG

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Tangless® Tools – Inch

Tangless Installation Tools Power Tool - Pneumatic Complete Power Tool

Power Tool - Electronic Electronic Power Inserting Tool

For rapid installation of Heli-Coil inserts. A range of front end assemblies are available for use with the power tool, to suit both bulk and strip feed inserts.

A quieter, lighter Installation Tool especially suitable for clean room operations. The slender configuration of the gage style mandrel allows easy access to constricted areas.

Component parts sold separately: Adapter, Sm (<1/4”) 8550R Adapter, Lg (>1/4”) 8550-1R

8050-50

8510-1

8050-400C 8050-650C

Tangless® Power Tooling

Tangless® Hand Installation Tooling Nominal Hand Thread Installation Tool Size Crank Style Gage Style(†)

Replacement Installation Blade Kit** Removal Tool Crank Style Gage Style (with handles)

Electronic Driver*

Front End Assembly

Replacement Mandrel Assembly

Replacement Blade

UNIFIED COARSE THREAD (UNC) 2-56

17551-02

7571-02B

17551-02-5

7571-02-5

7570-02

8050-400C

18551-02-15

18551-02-30

18551-02-2

4-40

17551-04

7571-04B

17551-04-5

7571-04-5

7570-04

8050-400C

18551-04-15

18551-04-30

18551-04-2

6-32

17551-06

7571-06B

17551-06-5

7571-06-5

7570-06

8050-400C

18551-06-15

18551-06-30

18551-06-2

8-32

17551-2

7571-2B

17551-2-5

7571-2-5

7570-2

8050-400C

18551-2-15

18551-2-30

18551-2-2

10-24

17551-3

7571-3B

17551-3-5

7571-3-5

7570-3

8050-650C

18551-3-15

18551-3-30

18551-3-2

1/4-20

17551-4

7571-4B

17551-4-5

7571-4-5

7570-4

8050-650C

18551-4-15

18551-4-30

18551-4-2

UNIFIED FINE THREAD (UNF) 10-32

17552-3

7572-3B ††

17552-3-5

7572-3-5

7560-3

8050-650C

18552-3-15

18552-3-30

18552-3-2

1/4-28

17552-4

N/A

17552-4-5

N/A

7560-4

8050-650C

18552-4-15

18552-4-30

18552-4--2

* An electronic driver requires a power supply, part number 8050-50. ** Includes blade, spring and pin. (†) Gage style tools must be used with electronic tool. Handle must be removed prior to use with electronic or battery operated drivers. (††) 10-32

gage style tool not recommended for use with electronic driver.

Front End Assembly

Front End Assembly Dimensions Nominal Thread Size

A Nose Diameter

B Body Diameter

C Prewinder Tip Length

2-56 4-40

.32 .25

.32 .40

.09 .13

6-32

.32

.50

.14

8-32

.35

.51

.15

10-24

.38

.51

.19

1/4-20

.42

.63

.22

10-32

.38

.51

.15

1/4-28

.42

.63

.22

Installation mandrel w/handle assembly

Installation Tool Dimensions Nominal Thread Size

A Overall Length (reference)

B Mandrel Length

C Spinner Diameter

2-56

5.33

2.80

.240

4-40

5.43

2.90

.240

6-32

5.53

3.00

.360

8-32

5.68

3.15

.360

10-24

5.53

3.00

.370

1/4-20

5.53

3.00

.370

10-32

5.53

3.00

.370

1/4-28

5.53

3.00

.370

Installation mandrel only

Adjusting/removal tool (shown w/o handle)

Note: Installation mandrel and adjusting/removal tool designed for use with both handle and electronic tool.

- 34 -

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Tangless Tools – Metric ®

Hand Tools Range includes Prewinder for finer pitch inserts and Threaded Mandrel tools for coarse pitch inserts.

Taps & Gages Taps and gages are key to ensuring accurate insert installation.

Tangless® Power Tooling

Tangless® Hand Installation Tooling Nominal Thread Size

Hand Replacement Installation Installation Tool Blade Kit** Removal Tool Electronic Crank Style Gage Style(†) Crank Style Gage Style (with handles) Driver

Replacement Mandrel Assembly

Front End Assembly

Replacement Blade

METRIC FREE RUNNING M2.5x0.45

17751-2.5

7587-2.5

17743-2.5

7587-2.5-2

7595-2.5

8050-400C

38751-2.5-15

38751-2.5-30

38757-2.5

M3x0.5

17751-3

7587-3

17743-3

7587-3-2

7595-3

8050-400C

38751-3-15

38751-3-30

38757-3

M4x0.7

17751-4

7587-4

17743-4

7587-4-2

7595-4

8050-400C

38751-4-15

38751-4-30

38757-4

M5x0.8

17751-5

7587-5

17743-5

7587-5-2

7595-5

8050-400C

M6x1.0

17751-6

7587-6

17743-6

7587-6-2

7595-6

8050-400C

38751-5-15 38751-6-15

38751-5-30 38751-6-30

38757-5 38757-6

M2.5x0.45

17751-2.5

7587-2.5S

17743-2.5

7587-2.5-2

7595-2.5

8050-400C

38751-2.5-15

38751-2.5-30

38757-2.5

M3x0.5

17751-3

7587-3S

17743-3

7587-3-2

7595-3

8050-400C

38751-3-15

38751-3-30

38757-3

M4x0.7

17751-4

7587-4S

17743-4

7587-4-2

7595-4

8050-400C

38751-4-15

38751-4-30

38757-4

M5x0.8

17751-5

7587-5S

17743-5

7587-5-2

7595-5

8050-400C

38751-5-15

38751-5-30

38757-5

M6x1.0

17751-6

7587-6S

17743-6

7587-6-2

7595-6

8050-400C

38751-6-15

38751-6-30

38757-6

METRIC SCREW-LOCKING

* An electronic driver requires a power supply, part number 8050-50. ** Includes blade, spring and pin. (†) Gage style tools must be used with electronic tool. Handle must be removed prior to use with electronic or battery operated drivers.

Front End Assembly Dimensions

Front End Assembly Nominal Thread Size

A Nose Diameter

B Body Diameter

C D Prewinder Tip Prewinder Length Length

M2.5

0.250

0.375

0.095

1.375

M3

0.281

0.375

0.103

1.375

M4

0.344

0.500

0.139

1.375

M5

0.375

0.500

0.157

1.500

M6

0.422

0.625

0.192

1.625

Installation mandrel w/handle assembly

Installation Tool Dimensions

Installation mandrel only

Adjusting/removal tool (shown w/o handle)

Nominal Thread Size

A Overall Length (reference)

B Mandrel Length

C Spinner Diameter

M2.5

5.063

2.716

0.240

M3

5.125

2.705

0.250

M4

5.312

3.985

0.360

M5

5.500

3.094

0.380

M6

5.500

3.094

0.433

Note: Installation mandrel and adjusting/removal tool designed for use with both handle and electronic tool.

- 35 -

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Tool & Tap Selection Guide – Inch

TANGED INSERTS, TOOL & TAP SELECTION GUIDE

Straight Flute Spiral Point Nominal Hand Pneumatic Tang Thread Installation Installation Break Off Removal Size Tool Tool Tool Tool

Plug

3B

2B

Bottoming

3B

2B

Plug

3B

2B

High Spiral Flute Bottoming

3B 2B

UNIFIED COARSE THREAD (UNC) ; (FREE RUNNING & SCREW-LOCKING) 2-56

551-02 8551-02 3695-02 1227-02 02CPB 02CPA

02CBB

02CBA

02CSB 02CSA 5905-02 6905-02

4-40

7551-04 8551-04 3695-04 1227-06 04CPB 04CPA

04CBB

04CBA

04CSB 04CSA 5905-04 6905-04

6-32

7551-06 8551-06 3695-06 1227-06 06CPB 06CPA

06CBB

06CBA

06CSB 06CSA 5905-06 6905-06

8-32

7551-2 8551-2 3695-2 1227-06 2CPB 2CPA

2CBB

2CBA

2CSB 2CSA 5905-2 6905-2

10-24 7551-3 8551-3 3695-3 1227-6 3CPB 3CPA

3CBB

3CBA

3CSB 3CSA 5905-3 6905-3

1/4-20 7551-4 8551-4 3695-4 1227-6 4CPB 4CPA

4CBB

4CBA

4CSB 4CSA 5905-4 6905-4

5/16-18 7551-5 8251-5 3695-5 1227-6 5CPB 5CPA

5CBB

5CBA

5CSB 5CSA 5905-5 6905-5

3/8-16 7551-6 8251-6 3695-6 1227-16 6CPB 6CPA

6CBB

6CBA

6CSB 6CSA 5905-6 6905-6

7/16-14 7551-7 8251-7 3695-7 1227-16 7CPB 7CPA

7CBB

7CBA

7CSB 7CSA 5905-7 6905-7

1/2-20 7552-8 8252-8 3692-8 1227-16 8FPB 8FPA

8FBB

8FBA

8FSB 8FSA 5906-8 6906-8

9/16-12 3724-9

Pliers

1227-16 187-9 38187-9 4187-9

43187-9

5/8-11

3724-10

Pliers

1227-16 8187-10 18187-10 10187-10 20187-10

3/4-10

3724-12

Pliers

1227-16 8187-12 18187-12 10187-12 20187-12

7/8-9

3724-14

Pliers

1227-16 8187-14 18187-14 10187-14 20187-14

1-8

3724-16

Pliers

1227-16 8187-16 18187-16 10187-16 20187-16

1-1/8-7 3724-18

Pliers

1227-24 8187-18 18187-18 10187-18 20187-18

1-1/4-7 3724-20

Pliers

1227-24 8187-20 18187-20 10187-20 20187-20

1-3/8-6 3724-22

Pliers

1227-24 8187-22 18187-22 10187-22 20187-22

1-1/2-6 3724-24

Pliers

1227-24 8187-24 18187-24 10187-24 20187-24

UNIFIED FINE THREAD (UNF) ; (FREE RUNNING & SCREW-LOCKING)

2-64

7552-02

3695-02 1227-02 02FPB 02FPA

02FBB

02FBA

02FSB 02FSA 5906-02 6906-02

3-56

7552-03

3695-02 1227-06 03FPB 03FPA

03FBB

03FBA

03FSB 03FSA 5906-03 6906-03

4-48

7552-04

3695-04 1227-06 04FPB 04FPA

04FBB

04FBA

04FSB 04FSA 5906-04 6906-04

6-40

7552-06 8552-06 3695-06 1227-06 06FPB 06FPA

06FBB

06FBA

06FSB 06FSA 5906-06 6906-06

8-36

7552-2

3695-2 1227-06 2FPB 2FPA

2FBB

2FBA

2FSB 2FSA 5906-2 6906-2

10-32 7552-3 8552-3 3695-3 1227-6 3FPB 3FPA

3FBB

3FBA

3FSB 3FSA 5906-3 6906-3

1/4-28 7552-4 8552-4 3695-4 1227-6 4FPB 4FPA

4FBB

4FBA

4FSB 4FSA 5906-4 6906-4

5/16-24 7552-5 8251-5 3692-5 1227-6 5FPB 5FPA

5FBB

5FBA

5FSB 5FSA 5906-5 6906-5

3/8-24 7552-6 8251-6 3692-6 1227-6 6FPB 6FPA

6FBB

6FBA

6FSB 6FSA 5906-6 6906-6

7/16-20 7552-7 8251-7 3692-7 1227-16 7FPB 7FPA

7FBB

7FBA

7FSB 7FSA 5906-7 6906-7

1/2-20 7552-8 8252-8 3692-8 1227-16 8FPB 8FPA

8FBB

8FBA

8FSB 8FSA 5906-8 6906-8

9/16-18 535-9

Pliers

1227-16 38193-9 18193-9 43193-9

5/8-18

535-10

Pliers

1227-16 8193-10 18193-10 10193-10 20193-10

3/4-16

535-12

Pliers

1227-16 8193-12 18193-12 10193-12 20193-12

7/8-14

535-14

Pliers

1227-16 8193-14 18193-14 10193-14 20193-14

1-14

535-16

Pliers

1227-16 8193-16 18193-16 10193-16 20193-16

1-12

535-161

Pliers

1227-16 8193-161 18193-161 10193-161 20193-161

1-1/8-12 535-18

Pliers

1227-24 8193-18 18193-18 10193-18 20193-18

1-1/4-12 535-20

Pliers

1227-24 8193-20 18193-20 10193-20 20193-20

- 36 -

20193-9

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Tool & Tap Selection Guide – Metric TANGED INSERTS, TOOL & TAP SELECTION GUIDE

Spiral Point High Spiral Flute Straight Flute

Nominal Hand Pneumatic Tang Thread Installation Installation Break Off Removal Size Tool Tool Tool Tool

Plug

4H5H

5H

Bottoming

4H5H

5H

Plug

4H5H

Bottoming

5H

4H5H

5H

METRIC COARSE (FREE RUNNING & SCREW-LOCKING) M2x0.4 7751-2

4238-2 1227-01 4687-2 2087-2 4693-2

2093-2

4863-2 4763-2 5081-2 4681-2

M2.5x0.45 7751-2.5 8751-2.5 4238-2.2 1227-06 4687-2.5 2087-2.5 4693-2.5

2093-2.5 4863-2.5 4763-2.5 5081-2.5 4681-2.5

M3x0.5 7751-3 8751-3 4238-3 1227-06 4687-3 2087-3 4693-3

2093-3

4863-3 4763-3 5081-3 4681-3

M3.5x0.6 7751-3.5 8751-3.5 4238-3 1227-06 4687-3.5 2087-3.5 4693-3.5 2093-3.5 4863-3.5 4763-3.5 5081-3.5 4681-3.5 M4x0.7 7751-4 8751-4 4238-4 1227-06 4687-4 2087-4 4693-4

2093-4

4863-4 4763-4 5081-4 4681-4

M5x0.8 7751-5 8751-5 4238-5 1227-6 4687-5 2087-5 4693-5

2093-5

4863-5 4763-5 5081-5 4681-5

M6x1 7751-6 8751-6 4238-6 1227-6 4687-6 2087-6 4693-6

2093-6

4863-6 4763-6 5081-6 4681-6

M7x1 7751-7 8751-7 4238-7 1227-6 4687-7 2087-7 4693-7

2093-7

4863-7 4763-7 5081-7 4681-7

M8x1.25 7751-8 8751-8 4238-8 1227-6 4687-8 2087-8 4693-8

2093-8

4863-8 4763-8 5081-8 4681-8

M10x1.5 7751-10 8751-10 4238-10 1227-6 4687-10 2087-10 4693-10

2093-10

4863-10 4763-10 5081-10 4681-10

M12x1.75 7751-12 8751-12 4238-12 1227-16 4687-12 2087-12 4693-12

2093-12

4863-12 4763-12 5081-12 4681-12

M14x2

7751-14

Pliers

1227-16 4687-14 2087-14

4693-14

2093-14

M16x2

7751-16

Pliers

1227-16 4687-16 2087-16

4693-16

2093-16

M18x2.5 7751-18

Pliers

1227-16 4687-18 2087-18

4693-18

2093-18

M20x2.5 7751-20

Pliers

1227-16 4687-20 2087-20

4693-20

2093-20

M22x2.5 7751-22

Pliers

1227-16 4687-22 2087-22

4693-22

2093-22

M24x3

7751-24

Pliers

1227-16 4687-24 2087-24

4693-24

2093-24

M27x3

7751-27

Pliers

1227-24 4687-27 2087-27

4693-27

2093-27

M30x3.5 7751-30

Pliers

1227-24 4687-30 2087-30

4693-30

2093-30

M33x3.5 7751-33

Pliers

1227-24 4687-33 2087-33

4693-33

2093-33

M36x4

7751-36

Pliers

1227-24 4687-36 2087-36

4693-36

2093-36

M39x4

7751-39

Pliers

1227-24 4687-39 2087-39

4693-39

2093-39

METRIC FINE (FREE RUNNING & SCREW-LOCKING) M8x1 7755-8 8755-8 4238-8 1227-6 5484-8 4984-8 5486-8

4986-8

4864-8 4764-8 5066-8 4666-8

M10x1 7755-10 8755-10 4238-10 1227-6 5484-10 4984-10 5486-10 4986-10 4864-10 4764-10 5066-10 4666-10 M10x1.25 7756-10 8756-10 4238-10 1227-6 5444-10 4944-10 5445-10 4945-10 4865-10 4765-10 5067-10 4667-10 M12x1.25 7756-12 8756-12 4238-12 1227-16 5444-12 4944-12 5445-12

4945-12

M14x1.5 7753-14

Pliers

1227-16 5476-14 4976-14 5477-14

4977-14

M16x1.5 7753-16

Pliers

1227-16 5476-16 4976-16 5477-16

4977-16

M18x1.5 7753-18

Pliers

1227-16 5476-18 4976-18 5477-18

4977-18

M20x1.5 7753-20

Pliers

1227-16 5476-20 4976-20 5477-20

4977-20

M22x1.5 7753-22

Pliers

1227-16 5476-22 4976-22 5477-22

4977-22

M18x2 7754-18

Pliers

1227-16 5490-18 4990-18 5492-18

4992-18

M20x2 7754-20

Pliers

1227-16 5490-20 4990-20 5492-20

4992-20

M22x2 7754-22

Pliers

1227-16 5490-22 4990-22 5492-22

4992-22

M18x2 7754-18

Pliers

1227-16 5490-18 4990-18 5492-18

4992-18

M20x2 7754-20

Pliers

1227-16 5490-20 4990-20 5492-20

4992-20

M22x2 7754-22

Pliers

1227-16 5490-22 4990-22 5492-22

4992-22

M24x2 7754-24

Pliers

1227-16 5490-24 4990-24 5492-24

4992-24

M27x2 7754-27

Pliers

1227-24 5490-27 4990-27 5492-27

4992-27

M30x2 7754-30

Pliers

1227-24 5490-30 4990-30 5492-30

4992-30

M33x2 7754-33

Pliers

1227-24 5490-33 4990-33 5492-33

4992-33

M36x2 7754-36

Pliers

1227-24 5490-36 4990-36 5492-36

4992-36

M39x2 7754-39

Pliers

1227-24 5490-39 4990-39 5492-39

4992-39

M36x3 7752-36

Pliers

1227-24 5496-36 4996-36 5497-36 4997-36

M39x3 7752-39

Pliers

1227-24 5496-39 4996-39 5497-39 4997-39

- 37 -

4865-12 4765-12 5067-12 4667-12

www.StanleyEngineeredFastening.com

®

Thread Repair Kits & Master Sets

Heli-Coil inserts are available in thread repair kits and sets for repairing tapped holes which have been stripped or damaged due to wear, corrosion and over-torque. They are available in inch, metric, spark plug and pipe thread series. All kits have a quantity of inserts, the proper size drill, high speed steel Heli-Coil tap and an installation tool. The Professional Kits* (shown in bold type) also includes a tang removal tool and quantities of three lengths of inserts.

PROFESSIONAL KITS

SPARK PLUG KITS

PROFESSIONAL KITS

Nominal Thread Kit Inserts Size Part No. Per Kit

Nominal Thread Kit Inserts Size Part No. Per Kit

UNIFIED COARSE THREAD (UNC)

METRIC COARSE

Nominal Thread Size

Kit Inserts Part No. Reach Per Kit

10-1.0mm 5523-10 1/2

24

4-40

5401-04 36*

M3x0.5

5403-3 36*

12-1.25mm 5523-12 1/2

12

5-40

5401-05 36*

M3.5x0.6

5403-3.5 36*



3/4 12

6-32

5401-06 36*

M4x0.7

5403-4 18*

8-32

5401-2 36*



3/8 6

M5x0.8

5403-5 18*



7/16 6

10-24

5401-3 36*

M6x1

5403-6 18*

14-1.25mm 5523-14 1/2

12-24

5401-1 36*

M7x1

5403-7 18*



3/4 6

1/4-20

5401-4 36*

M8x1.25

5403-8 18*



.472 6

5/16-18

5401-5 36*

M9x1.25 5403-9

3/8-16

5401-6 18*

M10x1.5

7/16-14

5401-7 18*

M11x1.5 5403-11

1/2-13

5401-8 18*

1-8

5521-16 6 

12  18-1.50mm 5523-18 1/2

5403-10 18*

7/8-18

550

6

24

1/2-5/8 10

6  Short 6 M12x1.75 5403-12 18* M14x1.25* 5408-14 Normal 6 9/16-12 5401-9 6  M14x2 5403-14 12  Long 6 5/8-11 5401-10 6  ® M16x2 5403-16 6  *Sav-A-Thread 3/4-10 5401-12 4  M18x2.5 5403-18 6  Note: Do not use Heli-Coil wire inserts to repair taper seat plug ports. 7/8-9 5521-14 6  M20x2.5 5403-20 4  1–1/8-7 5521-18 5  M8x1 1–1/4-7 5521-20 4  M10x1 1–3/8-6 5521-22 4  M10x1.25 1–1/2-6 5521-24 4  M12x1.25

UNIFIED FINE THREAD (UNF) 

M12x1.5

METRIC FINE  5404-8 18* 5404-10 18* 5405-10 18* 5405-12 18* 5406-12 18*

6-40

5402-06 36*

M14x1.5 5406-14

6 

8-36

5402-2 36*

M16x1.5 5406-16

6 

10-32

5402-3 36*

M18x1.5 5406-18

6 

1/4-28

5402-4 36*

* The total quantity of inserts in the Professional

5/16-24

5402-5 36*

3/8-24

5402-6 18*

7/16-20

5402-7 18*

1/8-27 5407-2 12

1/2-20

5402-8 18*

1/4-18 5407-4 12

9/16-18 5402-9

Kits represents 3 lengths.

1/2-14 5407-8 10

5/8-18 5402-10 6 

3/4-14 5407-12 10

3/4-16 5402-12 4 

1-11-1/2 5407-16 6

7/8-14 5528-14 6  1-12

5528-161 6 

1­­–1/8-12

5528-18

1–1/4-12 5528-20 1–3/8-12 5528-22 1–1/2-12 5528-24

* The total quantity of inserts in the Professional Kits represents 3 lengths.

5 

Type

4  Inch Coarse 4  Inch Fine 4 Metric Metric

Nominal Thread Kit Inserts Size Part No. Per Kit

3/8-18 5407-6 10

6 

1-14 5528-16 6 

PIPE THREAD KITS

MASTER THREAD REPAIR SETS Part No.

Insert sizes included in set

4934

1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 5/8-11

4936

10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, 1/2-20

4937-125

M5x0.8, M6x1, M8x1.25, M10x1.25

4937-150

M5x0.8, M6x1, M8x1.25, M10x1.5

All sets contain a drill, tap, tool and inserts for each size listed above.

- 38 -

www.StanleyEngineeredFastening.com

®

Powerful Brands. Breakthrough Solutions. At STANLEY Engineered Fastening we believe in seeking ways to serve our customers better. We create the future by anticipating our customers needs. Through diversifying our product lines, creating unique assembly technologies and offering a breadth of service to meet the demands of industry worldwide, STANLEY Engineered Fastening provides technological solutions to over 100 different industries.

Avdel®

POP®

Avdel has been producing assembly systems since 1936 and offers a comprehensive range of fasteners and tooling.

From 2mm micro rivets to 1/4"structural rivets, POP blind rivets meet the needs of multiple markets.

STANLEY Assembly Technologies

Dodge®

STANLEY Assembly Technologies supplies production solutions to the global assembly market.

With a focus on high-quality threaded inserts for plastics products, Dodge has been a leader in the fastening market since the 1950s.

Spiralock®

Gripco®

Spiralock is a technologically superior fastening system ideally suited for threaded joint applications subjected to heavy shock and vibration.

Gripco has been providing quality nut and threaded assembled products since 1904.

Heli-Coil®

Tucker®

Based on a long history that began in the aerospace industry, Heli-Coil offers a vast range of high-quality.

A one-sided drawn-arc welding process is the foundation of the Tucker No-Hole assembly solution.

iForm®

Warren®

iForm continues a proud heritage since 1969 and represents over 40 years of creative threaded fastener application engineering.

Whether it's plastic, metal, or a combination of the two, Warren can design a product that will suit your environment.

- 39 -

www.StanleyEngineeredFastening.com

STANLEY Engineered Fastening, a Stanley Black & Decker Inc. Company has been revolutionizing fastening and assembly technologies for a variety of industries for more than 40 years. For more information, please visit our website

www.StanleyEngineeredFastening.com Quick Links: Our locations

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http://www.stanleyengineeredfastening.com/resource-center

© 2016 Stanley Black & Decker, Inc., HC2000, Rev. 12, 01.2016 Heli-Coil®,Primer Free®, and Sav-A-Thread® are registered trademarks of Stanley Black & Decker, Inc. and its affiliates. Tangless® is a registered trademark of Advanex Inc. Nitronic 60® is a registered trademark of AK Steel. Data shown is subject to change without prior notice as a result of continuous product development and improvement policy. The information in this catalog is not HC2000 Rev. 8 representative (02/12) to be considered a specification. Your local STANLEY Engineered Fastening is at your disposal should you need to confirm latest information.