bolts › shear bolts
MS21250H04012
Military Standard Shear Bolt
Description
Fastener Length: 1-1/4", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 33/64", MS21250 series bolt
Specifications
| Extended Washer Diameter | 0.428 inches minimum and 0.438 inches maximum |
|---|---|
| Extended Washer Thickness | 0.069 |
| Fastener Length | 1.262 |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.740 inches minimum and 0.760 inches maximum |
| Hardness Rating | 39.0 rockwell c minimum and 43.0 rockwell c maximum |
| Head Height | 0.300 |
| Head Style | Double hexagon w/hole |
| Hole Configuration Style | Hexagon longitudinal hole |
| Hole Diameter | 0.037 |
| Hole Quantity | 4 |
| Hole Type | Drilled |
| Length | 1 1/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,type 2,class 2 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.502 inches minimum and 0.522 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.304 inches minimum and 0.313 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21250H04012. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error