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About Socket Head Screws
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Exact-Grip-Length Flanged Socket Head Screws
For use where sideways forces are a concern, these screws have a precisely measured unthreaded portion (grip) for a strong hold. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Head height includes the flange. Length is measured from under the flange.
Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Lg. | Grip Lg. | Thread Spacing  | Dia. | Ht. | Flange Dia. | Drive Size | Tensile Strength, psi | Each | |
18-8 Stainless Steel | |||||||||||
1/4"-20 | |||||||||||
| 2 7/16" | Partially Threaded | 7/16" | 2" | Coarse | 3/8" | 5/16" | 9/16" | 3/16" | 80,000 | 000000000 | 00000 |