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About Socket Head Screws
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Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws
Fully Threaded
Partially Threaded
More corrosion resistant than 18-8 stainless steel screws, these screws have excellent resistance to chemicals and salt water. They 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. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.
Screws that meet ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing  | Dia. | Ht. | Drive Size | Finish | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||||||||
0-80 | ||||||||||||
| 1/8" | Fully Threaded | __ | Fine | 0.096" | 0.06" | 0.050" | Passivated | 70,000 | __ | 10 | 000000000 | 00000 |
| 3/16" | Fully Threaded | __ | Fine | 0.096" | 0.06" | 0.050" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1/4" | Fully Threaded | __ | Fine | 0.096" | 0.06" | 0.050" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Fine | 0.096" | 0.06" | 0.050" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Fine | 0.096" | 0.06" | 0.050" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
1-72 | ||||||||||||
| 3/16" | Fully Threaded | __ | Fine | 0.118" | 0.073" | 1/16" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1/4" | Fully Threaded | __ | Fine | 0.118" | 0.073" | 1/16" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Fine | 0.118" | 0.073" | 1/16" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Fine | 0.118" | 0.073" | 1/16" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
2-56 | ||||||||||||
| 1/8" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 3/16" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1/4" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 5/16" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 7/16" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 9/16" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 5/8" | Fully Threaded | __ | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 50 | 000000000 | 00000 |
| 3/4" | Partially Threaded | 5/8" | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 7/8" | Partially Threaded | 5/8" | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1" | Partially Threaded | 5/8" | Coarse | 0.14" | 0.086" | 5/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
3-48 | ||||||||||||
| 1/4" | Fully Threaded | __ | Coarse | 0.161" | 0.099" | 5/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Coarse | 0.161" | 0.099" | 5/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Coarse | 0.161" | 0.099" | 5/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
4-40 | ||||||||||||
| 1/8" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 3/16" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1/4" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 5/16" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 7/16" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 9/16" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 5/8" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 7/8" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1" | Partially Threaded | 3/4" | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1 1/8" | Partially Threaded | 3/4" | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1 1/4" | Partially Threaded | 3/4" | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1 3/8" | Partially Threaded | 3/4" | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1 3/4" | Partially Threaded | 3/4" | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 2" | Partially Threaded | 3/4" | Coarse | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 00000 |
4-48 | ||||||||||||
| 1/4" | Fully Threaded | __ | Fine | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Fine | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Fine | 0.183" | 0.112" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
5-40 | ||||||||||||
| 1/4" | Fully Threaded | __ | Coarse | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Coarse | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Coarse | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 5/8" | Fully Threaded | __ | Coarse | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | Coarse | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1" | Partially Threaded | 3/4" | Coarse | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
5-44 | ||||||||||||
| 1/4" | Fully Threaded | __ | Fine | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Fine | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Fine | 0.205" | 1/8" | 3/32" | Passivated | 70,000 | __ | 50 | 000000000 | 0000 |
6-32 | ||||||||||||
| 1/8" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 3/16" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1/4" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 5/16" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 3/8" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 7/16" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1/2" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 9/16" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 5/8" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 3/4" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 7/8" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1" | Partially Threaded | 3/4" | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 25 | 000000000 | 0000 |
| 1 1/8" | Partially Threaded | 3/4" | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1 1/4" | Partially Threaded | 3/4" | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1 3/8" | Partially Threaded | 3/4" | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | __ | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |
| 1 5/8" | Partially Threaded | 3/4" | Coarse | 0.226" | 0.138" | 7/64" | Passivated | 70,000 | __ | 10 | 000000000 | 0000 |