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MS9171-10
Military Standard Bolt
Description
Fastener Length: 7/8", Hole Diameter: 5/64", 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 | 0.875 |
| Features Provided | Finished head |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Height | 0.375 |
| Head Style | Double hexagon w/hole |
| Hole Configuration Style | Hexagon longitudinal hole |
| Hole Diameter | 0.070 |
| Hole Quantity | 4 |
| Hole Type | Drilled |
| Length | 7/8 |
| 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 | Oxide |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.875 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 |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error