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About Socket Head Screws
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Mil. Spec. 18-8 Stainless Steel Socket Head Screws
Fully Threaded
Choose these screws for their adherence to strict military standards for material and construction. Dimensions meet Fed. Spec. FF-S-86 specifications. Screws may be mildly magnetic. Length is measured from under the head. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing  | Dia. | Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
5/16"-24 | ||||||||||
| 3/4" | Fully Threaded | Fine | 15/32" | 5/16" | 1/4" | 80,000 | MS16996-31, NAS1351C5-12, NASM16996, Fed. Spec. FF-S-86 | 1 | 000000000 | 00000 |