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MS9148-13
Military Standard Bolt
Description
Fastener Length: 1-1/16", Thread: 5/16-24, Thread Length: 7/8"
Specifications
| Extended Washer Diameter | 0.500 |
|---|---|
| Extended Washer Thickness | 0.070 inches minimum and 0.080 inches maximum |
| Fastener Length | 1.062 |
| Features Provided | Finished head |
| Grip Length | 0.128 inches minimum and 0.188 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Height | 0.375 |
| Head Style | Double hexagon w/hole |
| Material | Steel |
| Material Specification | Ams 6322 assn std single material response |
| Surface Finish | 32.0 microinches threads, 63.0 microinches bearing surface of head, 63.0 microinches grip |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Ams 2400 assn std single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.874 inches minimum and 0.934 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Width Between Flats | 0.367 inches minimum and 0.376 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS9148-12 MS 1/4-24 · 1-1/16 in · Double hexagon w/hole · Steel
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Catalog data updated 2026-07-05. Report a data error