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.
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 | |
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 00000 |
| 1/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 5/16" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 3/8" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1/2" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 3/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Shoulder Lg. | Thread Size | Thread Lg. | Head Dia. | Head Ht. | Tensile Strength, psi | Drive Size | 1-4 | 5-Up | |
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 00000 |
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) | ||||||||||
| 3-48 | 1/8" | 5/32" | 3/32" | 70,000 | 5/64" | 0.13"-1.99" | 000000000 | 000000 | 000000 | 00000 |
| 3-48 | 1/8" | 5/32" | 3/32" | 70,000 | 5/64" | 2"-3.99" | 000000000 | 00000 | 00000 | 0000 |
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | ||||||||||
| 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 0.13"-1.99" | 000000000 | 00000 | 00000 | 0000 |
| 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 2"-3.99" | 000000000 | 00000 | 00000 | 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 | |
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 00000 |
| 5/32" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 5/16" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 3/8" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 1/2" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 0000 | 0000 |
| 3/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 0000 |
| 1" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 00000 |
| 1 1/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 00000 |
| 1 1/2" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 000000000 | 00000 | 00000 |
Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Shoulder Lg. | Thread Size | Thread Lg. | Head Dia. | Head Ht. | Tensile Strength, psi | Drive Size | 1-4 | 5-Up | |
1/8" Shoulder Dia.—Standard Fit (-0.004" to -0.002" Dia. Tolerance) | |||||||||
| 1/8" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 00000 |
| 5/32" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 0000 | 0000 |
| 1/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 0000 |
| 5/16" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 0000 |
| 3/8" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 00000 |
| 1/2" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 00000 |
| 3/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 00000 |
| 1" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 00000 |
| 1 1/4" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 00000 |
| 1 1/2" | 3-48 | 5/32" | 1/4" | 1/8" | 70,000 | 5/64" | 00000000 | 00000 | 00000 |