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MS21318-22
4X5/16 MS21318 Military Round Head Type U Drive Screw Cadmium
Description
Drive Screw
Specifications
| Country of Origin | USA |
|---|---|
| Diameter | 0.114 in |
| Fastener Length | 0.312 |
| Features Provided | Casehardened |
| Head Angle | 100 ? |
| Head Diameter | Between 0.193 inches and 0.211 inches |
| Head Height | Between 0.075 inches and 0.086 inches |
| Head Style | Round Head |
| Industry Standards/Certification | MS21318 |
| Length | 1/4, 5/16 in |
| Material | Steel |
| NIIN | 00-253-5616 |
| NSN | 5305-00-253-5616 |
| Nonmachine Thread Diameter | 0.114 |
| Nonmachine Thread Style | Drive screw (type u) |
| Size | 4 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 3 federal specification all treatment responses |
| Weight | 0.0001 lb |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21318-22. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error