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MS9556-21
Military Standard Machine Bolt
Description
Fastener Length: 1-7/16", Thread: 10-32, Thread Length: 11/16
Specifications
| Extended Washer Diameter | 0.375 |
|---|---|
| Extended Washer Thickness | 0.040 inches minimum and 0.050 inches maximum |
| Fastener Length | 1.438 |
| Features Provided | Finished head |
| Grip Length | 0.748 inches minimum and 0.808 inches maximum |
| Hardness Rating | 248.0 brinell standard minimum and 341.0 brinell standard maximum |
| Head Height | 0.260 |
| Head Style | Double hexagon w/hole |
| Length | 1 7/16 |
| Material | Iron |
| Material Specification | Ams 5731 assn std single material response |
| Min. Tensile Strength (psi) | 130000 pounds per square inch |
| Minimum Yield Strength | 85000 pounds per square inch |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.630 inches minimum and 0.690 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJF |
| Thread Size | 10 |
| Width Between Flats | 0.243 inches minimum and 0.251 inches maximum |
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.
- MS9208-21 MS #10-32 · 0.073 in · Double hexagon w/hole · CRES
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Catalog data updated 2026-07-05. Report a data error