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About Socket Head Screws
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Socket Head Screws for Square-Drive Wrenches
Fully Threaded
Partially Threaded
No need for separate bits—these screws lock directly onto square-drive socket wrenches, reducing the risk of dropping parts during installation. With a head one and a half times taller than a standard socket head, these screws are easier to install in deep counterbored holes and other hard-to-reach places. They're made from 18-8 stainless steel and have good chemical resistance. Screws may be mildly magnetic. Length is measured from under the head.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Socket Head Profile | Lg. | Threading | Min. Thread Length | Thread Spacing  | Dia. | Ht. | Drive Size | Tensile Strength, psi | Each | |
18-8 Stainless Steel | ||||||||||
1/4"-20 | ||||||||||
| High | 3/8" | Fully Threaded | __ | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 00000 |
| High | 1/2" | Fully Threaded | __ | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 5/8" | Fully Threaded | __ | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 3/4" | Fully Threaded | __ | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 7/8" | Fully Threaded | __ | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 1" | Fully Threaded | __ | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 1 1/4" | Fully Threaded | __ | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 1 1/2" | Partially Threaded | 1" | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 2" | Partially Threaded | 1" | Coarse | 7/16" | 3/8" | 1/4" | 70,000 | 000000000 | 0000 |
5/16"-18 | ||||||||||
| High | 3/4" | Fully Threaded | __ | Coarse | 15/32" | 15/32" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 1" | Fully Threaded | __ | Coarse | 15/32" | 15/32" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 1 1/4" | Fully Threaded | __ | Coarse | 15/32" | 15/32" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 1 1/2" | Partially Threaded | 1 1/8" | Coarse | 15/32" | 15/32" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 1 3/4" | Partially Threaded | 1 1/8" | Coarse | 15/32" | 15/32" | 1/4" | 70,000 | 000000000 | 0000 |
| High | 2" | Partially Threaded | 1 1/8" | Coarse | 15/32" | 15/32" | 1/4" | 70,000 | 000000000 | 0000 |
3/8"-16 | ||||||||||
| High | 3/4" | Fully Threaded | __ | Coarse | 5/8" | 9/16" | 3/8" | 70,000 | 000000000 | 0000 |
| High | 1" | Fully Threaded | __ | Coarse | 5/8" | 9/16" | 3/8" | 70,000 | 000000000 | 0000 |
| High | 1 1/4" | Fully Threaded | __ | Coarse | 5/8" | 9/16" | 3/8" | 70,000 | 000000000 | 0000 |
| High | 1 1/2" | Partially Threaded | 1 1/4" | Coarse | 5/8" | 9/16" | 3/8" | 70,000 | 000000000 | 0000 |
| High | 1 3/4" | Partially Threaded | 1 1/4" | Coarse | 5/8" | 9/16" | 3/8" | 70,000 | 000000000 | 0000 |
| High | 2" | Partially Threaded | 1 1/4" | Coarse | 5/8" | 9/16" | 3/8" | 70,000 | 000000000 | 0000 |
1/2"-13 | ||||||||||
| High | 1" | Fully Threaded | __ | Coarse | 3/4" | 3/4" | 3/8" | 70,000 | 000000000 | 00000 |
| High | 1 1/4" | Fully Threaded | __ | Coarse | 3/4" | 3/4" | 3/8" | 70,000 | 000000000 | 00000 |
| High | 1 1/2" | Fully Threaded | __ | Coarse | 3/4" | 3/4" | 3/8" | 70,000 | 000000000 | 00000 |