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MS21296-04011
Military Standard Bolt
Description
Fastener Length: 1-7/32", Thread: 1/4-28, Thread Length: 33/64"
Specifications
| Extended Washer Diameter | 0.460 inches minimum and 0.470 inches maximum |
|---|---|
| Extended Washer Thickness | 0.026 inches minimum and 0.046 inches maximum |
| Fastener Length | 1.207 inches minimum and 1.237 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.678 inches minimum and 0.698 inches maximum |
| Hardness Rating | 51.0 rockwell c minimum and 54.0 rockwell c maximum |
| Head Height | 0.194 inches minimum and 0.234 inches maximum |
| Head Minor Diameter | 0.318 inches minimum and 0.324 inches maximum |
| Head Style | Spline extended washer |
| Length | 1 15/64 |
| Material | Steel |
| Material Specification | Ams 6487 assn std single material response |
| Min. Tensile Strength (psi) | 260000 pounds per square inch |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Mil-c-8837 type 2 class 2 mil spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.509 inches minimum and 0.559 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
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 MS21296-04011. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error