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MS21250-12038
Military Standard Bolt
Description
Fastener Length: 3-29/64", Thread: 3/4-16, Thread Length: 1-3/32"
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 | 3.438 inches minimum and 3.468 inches maximum |
| Grip Diameter | 0.7480 inches minimum and 0.7490 inches maximum |
| Grip Length | 2.365 inches minimum and 2.385 inches maximum |
| Hardness Rating | 39.0 rockwell c minimum and 43.0 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 | 3 29/64 |
| Material | Steel |
| Min. Tensile Strength (psi) | 180000 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 | Qq-p-416 ty 2,cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.750 |
| Thread Direction | Right-hand |
| Thread Length | 1.053 inches minimum and 1.103 inches maximum |
| Thread Qty | 16 |
| Thread Qty Per Inch (tpi) | 16 |
| Thread Series Designator | UNJF |
| Thread Size | 3/4 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21250-12038. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error