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MS21296-09028
Military Standard Bolt
Description
Fastener Length: 2-49/64", Thread: 9/16-18, Thread Length: 1-1/64"
Specifications
| Extended Washer Diameter | 1.037 inches minimum and 1.047 inches maximum |
|---|---|
| Extended Washer Thickness | 0.071 inches minimum and 0.091 inches maximum |
| Fastener Length | 2.765 inches minimum and 2.795 inches maximum |
| Grip Diameter | 0.5605 inches minimum and 0.5615 inches maximum |
| Grip Length | 1.740 inches minimum and 1.760 inches maximum |
| Hardness Rating | 51.0 rockwell c minimum and 54.0 rockwell c maximum |
| Head Height | 0.495 inches minimum and 0.515 inches maximum |
| Head Style | Spline extended washer |
| Length | 2 25/32 |
| Material | Steel |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip |
| Surface Treatment | Cadmium |
| Thread Class | 3a |
| Thread Diameter | 0.562 |
| Thread Direction | Right-hand |
| Thread Length | 1.005 inches minimum and 1.055 inches maximum |
| Thread Qty | 18 |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series Designator | UNJF |
| Thread Size | 1/2 |
| Width Between Flats | 0.610 inches minimum and 0.625 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21296-09028. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error