About Shoulder Screws
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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.
Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Shoulder Lg. | Thread Size | Thread Lg. | Head Dia. | Head Ht. | Tensile Strength, psi | Drive Size | 1-4 | 5-Up | |
5/32" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 00000 | 00000 |
| 5/32" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 3/16" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 1/4" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 3/8" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 1/2" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 3/4" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 1" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
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 | |
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | ||||||||||
| 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 0.13"-1.99" | 000000000 | 000000 | 000000 | 00000 |
| 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 2"-3.99" | 000000000 | 00000 | 00000 | 0000 |
5/32" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | ||||||||||
| 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 0.13"-1.99" | 000000000 | 00000 | 00000 | 0000 |
| 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 2"-3.99" | 000000000 | 00000 | 00000 | 00000 |
Same-Size Thread 18-8 Stainless Steel Shoulder Screws
With threads the same diameter as the shoulder, these screws can handle heavy loads. Made from 18-8 stainless steel, they 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.
Black-oxide stainless steel screws have a matte-black finish.
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 | 1-4 | 5-Up | |
Uncoated | |||||||||
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 00000 |
| 3/16" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1/4" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 5/16" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 3/8" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1/2" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 5/8" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 3/4" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
Black Oxide | |||||||||
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 3/16" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1/4" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 3/8" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1/2" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 5/8" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1" | 5-40 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
316 Stainless Steel Shoulder Screws
More corrosion resistant than 18-8 stainless steel shoulder screws, these have excellent resistance to chemicals and salt water. 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.
Black-oxide stainless steel screws have a matte-black finish.
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 | 1-4 | 5-Up | |
5/32" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 00000 | 00000 |
| 5/32" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 3/16" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 1/4" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 0000 | 0000 |
| 5/16" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 00000 | 0000 |
| 3/8" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 00000 | 0000 |
| 1/2" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 00000 | 0000 |
| 3/4" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 00000 | 00000 |
| 1" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 000000000 | 00000 | 00000 |
Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Shoulder Lg. | Thread Size | Thread Lg. | Head Dia. | Head Ht. | Tensile Strength, psi | Drive Size | 1-4 | 5-Up | |
5/32" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 000000 | 00000 |
| 5/32" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 0000 |
| 3/16" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 00000 |
| 1/4" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 00000 |
| 5/16" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 00000 |
| 3/8" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 00000 |
| 1/2" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 00000 |
| 3/4" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 00000 |
| 1" | 5-40 | 3/16" | 9/32" | 1/8" | 70,000 | 3/32" | 00000000 | 00000 | 00000 |