bolts › shear bolts
MS21250H05008
Military Standard Shear Bolt
Description
Fastener Length: 1-7/64", Hole Diameter: 5/64", Thread: 1/4-24, Thread Length: 39/64", drilled head, 12 point, MS21250 series bolt
Specifications
| Extended Washer Diameter | 0.521 inches minimum and 0.531 inches maximum |
|---|---|
| Extended Washer Thickness | 0.072 inches minimum and 0.092 inches maximum |
| Fastener Length | 1.089 inches minimum and 1.109 inches maximum |
| Grip Diameter | 0.3110 inches minimum and 0.3120 inches maximum |
| Grip Length | 0.490 inches minimum and 0.510 inches maximum |
| Hardness Rating | 39.0 rockwell c minimum and 43.0 rockwell c maximum |
| Head Height | 0.338 inches minimum and 0.358 inches maximum |
| Head Style | Double hexagon w/hole |
| Hole Configuration Style | Double hexagon longitudinal hole |
| Hole Diameter | 0.060 inches minimum and 0.080 inches maximum |
| Hole Quantity | 4 |
| Hole Type | Drilled |
| Length | 1 7/64 |
| 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 | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.579 inches minimum and 0.619 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.365 inches minimum and 0.385 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21250H05008. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error