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About Shoulder Screws
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Nickel Alloy Shoulder Screws
Nickel alloy shoulder screws are more resistant to acids and salt water than stainless steel shoulder screws. They 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.
Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Shoulder Lg. | Thread Size | Thread Lg. | Head Dia. | Head Ht. | Tensile Strength, psi | Drive Size | Specifications Met | 1-4 | 5-Up | |
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | ||||||||||
| 1/8" | 4-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | __ | 000000000 | 000000 | 000000 |
| 3/16" | 4-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | __ | 000000000 | 00000 | 00000 |
| 1/4" | 4-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | __ | 000000000 | 00000 | 00000 |
| 5/16" | 4-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | __ | 000000000 | 00000 | 00000 |
| 3/8" | 4-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | __ | 000000000 | 00000 | 00000 |
| 1/2" | 4-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | __ | 000000000 | 00000 | 00000 |
3/16" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | ||||||||||
| 1/8" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
| 3/16" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
| 1/4" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
| 5/16" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
| 3/8" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
| 1/2" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
| 3/4" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
| 1" | 8-32 | 3/16" | 5/16" | 5/32" | 70,000 | 3/32" | __ | 000000000 | 00000 | 00000 |
1/4" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | ||||||||||
| 1/4" | 10-24 | 3/8" | 3/8" | 3/16" | 70,000 | 1/8" | ASME B18.3 | 000000000 | 00000 | 00000 |
| 3/8" | 10-24 | 3/8" | 3/8" | 3/16" | 70,000 | 1/8" | ASME B18.3 | 000000000 | 00000 | 00000 |
| 1/2" | 10-24 | 3/8" | 3/8" | 3/16" | 70,000 | 1/8" | ASME B18.3 | 000000000 | 00000 | 00000 |
| 3/4" | 10-24 | 3/8" | 3/8" | 3/16" | 70,000 | 1/8" | ASME B18.3 | 000000000 | 00000 | 00000 |
| 1" | 10-24 | 3/8" | 3/8" | 3/16" | 70,000 | 1/8" | ASME B18.3 | 000000000 | 00000 | 00000 |