bolts › shear bolts
MS21250-08040
Military Standard Shear Bolt
Description
Fastener Length: 3-19/64", Thread: 1/2-20, Thread Length: 51/64
Specifications
| Extended Washer Diameter | 0.818 inches minimum and 0.828 inches maximum |
|---|---|
| Extended Washer Thickness | 0.113 inches minimum and 0.133 inches maximum |
| Fastener Length | 3.278 inches minimum and 3.298 inches maximum |
| Grip Diameter | 0.4985 inches minimum and 0.4995 inches maximum |
| Grip Length | 2.490 inches minimum and 2.510 inches maximum |
| Hardness Rating | 39.0 rockwell c minimum and 43.0 rockwell c maximum |
| Head Height | 0.494 inches minimum and 0.514 inches maximum |
| Head Style | Double hexagon w/hole |
| Length | 3 19/64 |
| 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,ty2,cl2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | 0.768 inches minimum and 0.808 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNJF |
| Thread Size | 1/2 |
| Width Between Flats | 0.552 inches minimum and 0.572 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21250-08040. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error