System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Material Material |
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Drive Style Drive Style |
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| External Hex | Hex |
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| Phillips | Slotted |
Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Socket Head Profile Socket Head Profile |
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 | Standard |
Finish Finish |
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Thread Direction Thread Direction |
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 | Right Hand |
Thread Spacing Thread Spacing |
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Tensile Strength Tensile Strength |
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Hardness Hardness |
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Threaded Insert Type Threaded Insert Type |
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 | Helical |
Rounded Head Profile Rounded Head Profile |
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About Nuts, Materials, and Finishes
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About Set Screws
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About Rounded Head Screws
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About Flat Head Screws
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About Shoulder Screws
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About Socket Head Screws
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About Helical Insert Length
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How to Install Helical Inserts
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Alloy Steel Socket Head Screws
With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.
Black-oxide steel screws are mildly corrosion resistant in dry environments.
Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch.
Screws that meet ASTM A574, ASTM A574M, and ISO 898-1 comply with specifications and testing requirements for material quality.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
1-64 | |||||||||||
Black-Oxide Alloy Steel | |||||||||||
| 1/8" | Fully Threaded | __ | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 10 | 000000000 | 00000 |
| 3/16" | Fully Threaded | __ | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 10 | 000000000 | 0000 |
| 1/4" | Fully Threaded | __ | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 10 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 10 | 000000000 | 00000 |
| 5/8" | Fully Threaded | __ | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 5 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 5 | 000000000 | 0000 |
| 1" | Partially Threaded | 3/4" | Coarse | 0.118" | 0.073" | 1/16" | 170,000 | ASTM A574 | 5 | 000000000 | 0000 |
18-8 Stainless Steel Socket Head Screws
Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Dia. | Ht. | Drive Size | Tensile Strength, psi | Pkg. Qty. | Pkg. | |
1-64 | |||||||||
18-8 Stainless Steel | |||||||||
| 1/8" | Fully Threaded | Coarse | 0.118" | 0.073" | 1/16" | 70,000 | 50 | 000000000 | 00000 |
| 3/16" | Fully Threaded | Coarse | 0.118" | 0.073" | 1/16" | 70,000 | 50 | 000000000 | 0000 |
| 1/4" | Fully Threaded | Coarse | 0.118" | 0.073" | 1/16" | 70,000 | 50 | 000000000 | 0000 |
| 5/16" | Fully Threaded | Coarse | 0.118" | 0.073" | 1/16" | 70,000 | 50 | 000000000 | 0000 |
| 3/8" | Fully Threaded | Coarse | 0.118" | 0.073" | 1/16" | 70,000 | 50 | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 0.118" | 0.073" | 1/16" | 70,000 | 100 | 000000000 | 00000 |
18-8 Stainless Steel Button Head Hex Drive Screws
18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.
Passivated stainless steel screws provide added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Finish | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
1-64 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | Fully Threaded | 0.129" | 0.033" | 0.050" | Passivated | 70,000 | ASME B18.3 | 25 | 000000000 | 00000 |
| 3/16" | Fully Threaded | 0.129" | 0.033" | 0.050" | Passivated | 70,000 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1/4" | Fully Threaded | 0.129" | 0.033" | 0.050" | Passivated | 70,000 | ASME B18.3 | 100 | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.129" | 0.033" | 0.050" | Passivated | 70,000 | ASME B18.3 | 100 | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.129" | 0.033" | 0.050" | Passivated | 70,000 | ASME B18.3 | 100 | 000000000 | 00000 |
| 3/4" | Fully Threaded | 0.129" | 0.033" | 0.050" | Passivated | 70,000 | ASME B18.3 | 50 | 000000000 | 0000 |
Alloy Steel Button Head Hex Drive Screws
Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. Length is measured from under the head.
Black-oxide alloy steel screws are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
1-64 | |||||||||
| 1/4" | Fully Threaded | 0.139" | 0.039" | 0.050" | 120,000 | ASME B18.3, ASTM F835 | 10 | 000000000 | 00000 |
18-8 Stainless Steel Pan Head Phillips Screws
18-8 stainless steel pan head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head. Partially threaded screws thread length may vary from the minimum thread length published to fully threaded.
Passivated stainless steel screws provide added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Passivated 18-8 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
1-64 | |||||||||
| 1/4" | Fully Threaded | 0.142" | 0.053" | No. 0 | 70,000 | ASME B18.6.3 | 100 | 000000000 | 000000 |
| 5/16" | Fully Threaded | 0.142" | 0.053" | No. 0 | 70,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 3/8" | Fully Threaded | 0.142" | 0.053" | No. 0 | 70,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 1/2" | Fully Threaded | 0.142" | 0.053" | No. 0 | 70,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
Brass Pan Head Phillips Screws
Brass pan head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Brass | |||||||||
|---|---|---|---|---|---|---|---|---|---|
1-64 | |||||||||
| 1/4" | Fully Threaded | 0.142" | 0.053" | No. 0 | 50,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/8" | Fully Threaded | 0.142" | 0.053" | No. 0 | 50,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.142" | 0.053" | No. 0 | 50,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
Stainless Steel Decorative Round Head Phillips Screws
Made from 18-8 stainless steel, these round head screws have good chemical resistance and may be mildly magnetic. They are passivated for added protection against oxidation and corrosion. The tall, domed head provides a finished appearance. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
1-64 | |||||||||
| 3/16" | Fully Threaded | 0.137" | 0.061" | No. 0 | 100,000 | ASME B18.6.3 | 100 | 000000000 | 000000 |
| 1/4" | Fully Threaded | 0.137" | 0.061" | No. 0 | 100,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 3/8" | Fully Threaded | 0.137" | 0.061" | No. 0 | 100,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 1/2" | Fully Threaded | 0.137" | 0.061" | No. 0 | 100,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 1" | Fully Threaded | 0.137" | 0.061" | No. 0 | 100,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
18-8 Stainless Steel Pan Head Slotted Screws
18-8 stainless steel pan head screws have good chemical resistance and may be mildly magnetic. All are passivated for added protection against oxidation and corrosion. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Decorative
Round Head Slotted Screws
18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. All are passivated for added protection against oxidation and corrosion. These screws have a tall, domed head that provides a finished appearance. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
1-64 | ||||||||
| 1/8" | Fully Threaded | 0.138" | 0.061" | 100,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/16" | Fully Threaded | 0.138" | 0.061" | 100,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
| 1/4" | Fully Threaded | 0.138" | 0.061" | 100,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
| 1" | Fully Threaded | 0.138" | 0.061" | 100,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
18-8 Stainless Steel Hex Drive Flat Head Screws
These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Passivated stainless steel screws have added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Flat Head Profile | Head Dia. | Head Ht. | Drive Size | Finish | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
1-64 | |||||||||||
| 3/16" | Fully Threaded | Standard | 0.168" | 0.054" | 0.050" | Passivated | 70,000 | ASME B18.3, ASTM F879, MIL-DTL-18240 | 50 | 000000000 | 00000 |
| 1/4" | Fully Threaded | Standard | 0.168" | 0.054" | 0.050" | Passivated | 70,000 | ASME B18.3, ASTM F879, MIL-DTL-18240 | 50 | 000000000 | 0000 |
| 3/8" | Fully Threaded | Standard | 0.168" | 0.054" | 0.050" | Passivated | 70,000 | ASME B18.3, ASTM F879, MIL-DTL-18240 | 50 | 000000000 | 0000 |
Alloy Steel Hex Drive Flat Head Screws
Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws. They're angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Screws with an undercut profile have a shallow head for use in thin materials.
Black-oxide alloy steel screws have mild corrosion resistance in dry environments.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Flat Head Profile | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
1-64 | ||||||||||
| 1/8" | Fully Threaded | Undercut | 0.137" | 0.031" | 0.050" | 120,000 | ASME B18.3, ASTM F835 | 10 | 000000000 | 000000 |
| 3/16" | Fully Threaded | Standard | 0.168" | 0.054" | 0.050" | 120,000 | ASTM F835 | 10 | 000000000 | 00000 |
| 1/4" | Fully Threaded | Standard | 0.168" | 0.054" | 0.050" | 120,000 | ASTM F835 | 10 | 000000000 | 00000 |
18-8 Stainless Steel Phillips Flat Head Screws
These screws have good chemical resistance and may be mildly magnetic. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Screws with an undercut profile have a shallow head for use in thin materials.
Passivated stainless steel screws provide added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Flat Head Profile | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Passivated 18-8 Stainless Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
1-64 | ||||||||||
| 1/8" | Fully Threaded | Undercut | 0.137" | 0.031" | No. 0 | 80,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 3/16" | Fully Threaded | Standard | 0.137" | 0.043" | No. 0 | 80,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 1/4" | Fully Threaded | Standard | 0.137" | 0.043" | No. 0 | 80,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 3/8" | Fully Threaded | Standard | 0.137" | 0.043" | No. 0 | 80,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 1/2" | Fully Threaded | Standard | 0.137" | 0.043" | No. 0 | 80,000 | ASME B18.6.3 | 100 | 000000000 | 00000 |
| 3/4" | Fully Threaded | Standard | 0.137" | 0.043" | No. 0 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
18-8 Stainless Steel Slotted Flat Head Screws
These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. All are passivated for added protection against oxidation and corrosion. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Screws with an undercut profile have a shallow head for use in thin materials.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Flat Head Profile | Head Dia. | Head Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
1-64 | |||||||||
| 1/8" | Fully Threaded | Undercut | 0.137" | 0.031" | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/16" | Fully Threaded | Standard | 0.137" | 0.043" | 80,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
| 1/4" | Fully Threaded | Standard | 0.137" | 0.043" | 80,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
| 1" | Fully Threaded | Standard | 0.137" | 0.043" | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
18-8 Stainless Steel Shoulder Screws
Made from 18-8 stainless steel, these shoulder screws have good chemical resistance and may be mildly magnetic. A standard shoulder with an undersized tolerance allows them to fit most machinery and equipment. They’re often used to guide or align components, and as an axle or pivot point.
For technical drawings and 3-D models, click on a part number.
For made-to-order shoulder screws, please specify the shoulder length in 0.01” increments.
Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Lg. | Head Dia. | Head Ht. | Tensile Strength, psi | Drive Size | Choose a Shoulder Lg. | 1-4 | 5-9 | 10-Up | |
3/32" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | ||||||||||
| 1-64 | 1/8" | 5/32" | 3/32" | 70,000 | 5/64" | 0.13"-1.99" | 000000000 | 000000 | 00000 | 00000 |
| 1-64 | 1/8" | 5/32" | 3/32" | 70,000 | 5/64" | 2"-3.99" | 000000000 | 00000 | 00000 | 0000 |
| 1-64 | 1/8" | 5/32" | 3/32" | 70,000 | 5/64" | 4"-6" | 000000000 | 00000 | 00000 | 00000 |
Alloy Steel Cup-Point Set Screws
Made from alloy steel, these set screws have a thin edge that digs into hard surfaces for a secure hold. Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
Low-Strength Steel Hex Nuts
About half the strength of medium-strength steel nuts, these nuts are for light duty fastening applications, such as securing access panels.
Zinc-plated steel nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
|---|---|---|---|---|---|---|
| 1-64 | 5/32" | 3/64" | ASME B18.6.3 | 50 | 000000000 | 00000 |
18-8 Stainless Steel Hex Nuts
These nuts have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
|---|---|---|---|---|---|
| 1-64 | 5/32" | 3/64" | 100 | 000000000 | 00000 |
Brass Hex Nuts
These nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Brass | |||||
|---|---|---|---|---|---|
| 1-64 | 5/32" | 3/64" | 100 | 000000000 | 00000 |
18-8 Stainless Steel Cap Nuts
These cap nuts have good chemical resistance and may be mildly magnetic. Also known as acorn nuts, they have a smooth rounded head that covers and protects threads while providing a finished appearance.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
| 1-64 | 1/16" | 3/16" | 3/16" | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Cap Nuts
These cap nuts have excellent resistance to chemicals and salt water. Also known as acorn nuts, they have a smooth rounded head that covers and protects threads while providing a finished appearance. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
| 1-64 | 1/16" | 3/16" | 3/16" | 1 | 000000000 | 00000 |
Stainless Steel Helical Inserts
Also known as Heli-Coil inserts, these inserts have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw. Installation requires a drill bit, a helical insert tap, an installation tool, and a prong break-off tool.
For technical drawings and 3-D models, click on a part number.
Inserts | Through-Hole Taps | Installation Tools | Prong Break-Off Tools | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Pkg. Qty. | Pkg. | Each | Each | Each | ||||
18-8 Stainless Steel—Right-Hand Threaded | ||||||||||||
| 1-64 | 0.073" | No. 46 | 0.081" | 10 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
| 1-64 | 0.11" | No. 46 | 0.081" | 10 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| 1-64 | 0.146" | No. 46 | 0.081" | 10 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
Stainless Steel Screw-Locking Helical Inserts
A distorted thread grips the screw to resist loosening. Also known as Heli-Coil inserts, these inserts have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw. Installation requires a drill bit, a helical insert tap, an installation tool, and a prong break-off tool.
For technical drawings and 3-D models, click on a part number.
Inserts | Through-Hole Taps | Installation Tools | Prong Break-Off Tools | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Pkg. Qty. | Pkg. | Each | Each | Each | ||||
18-8 Stainless Steel | ||||||||||||
| 1-64 | 0.073" | No. 46 | 0.081" | 5 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
| 1-64 | 0.11" | No. 46 | 0.081" | 5 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
Helical Insert Assortments with Installation Tools
Assortments include various sizes of helical inserts and a tap, a drill bit, and an installation tool for each thread size. Also known as Heli-Coil inserts, the inserts have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw.
| Includes | No. of Inserts Included | Thread Spacing | Drill Bit Size | For Max. Hole Dia. | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
18-8 Stainless Steel | ||||||
| 1-64 Thread × 0.11" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 2-56 Thread × 0.129" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 3-48 Thread × 0.148" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 4-40 Thread × 0.168" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 6-32 Thread × 0.207" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) 8-32 Thread × 0.246" Installed Lg. (24 Inserts and 24 Screw-Locking Inserts) Drill Bits Through-Hole Taps Installation Tools | 288 | Coarse | 5/64" 3/32" No. 36 No. 31 No. 26 No. 17 | 5/64" 3/32" 0.1065" 0.12" 0.147" 0.173" | 000000000 | 0000000 |