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MS21296-12051
Military Standard Bolt
Description
Fastener Length: 4-31/64", Thread: 3/4-16, Thread Length: 1-19/64"
Specifications
| Extended Washer Diameter | 1.384 inches minimum and 1.394 inches maximum |
|---|---|
| Extended Washer Thickness | 0.098 inches minimum and 0.118 inches maximum |
| Fastener Length | 4.481 inches minimum and 4.511 inches maximum |
| Grip Diameter | 0.7480 inches minimum and 0.7490 inches maximum |
| Grip Length | 3.178 inches minimum and 3.198 inches maximum |
| Hardness Rating | 51.0 rockwell c minimum and 54.0 rockwell c maximum |
| Head Height | 0.590 inches minimum and 0.610 inches maximum |
| Head Minor Diameter | 0.797 inches minimum and 0.812 inches maximum |
| Head Style | Spline extended washer |
| Length | 4 1/2 |
| Material | Steel |
| Material Specification | Ams 6487 assn std single material response |
| Min. Tensile Strength (psi) | 103000 pounds per square inch |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Mil-c-8837,type ii,class 2 mil spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.750 |
| Thread Direction | Right-hand |
| Thread Length | 1.293 |
| Thread Qty | 16 |
| Thread Qty Per Inch (tpi) | 16 |
| Thread Series Designator | UNJF |
| Thread Size | 3/4 |
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 MS21296-12051. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error