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MS21250H04038
Military Standard Shear Bolt
Description
Fastener Length: 2-7/8", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 33/64
Specifications
| Extended Washer Diameter | 0.428 inches minimum and 0.438 inches maximum |
|---|---|
| Extended Washer Thickness | 0.069 |
| Fastener Length | 2.887 |
| Grip Diameter | 0.2485 inches minimum and 0.2495 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 | 0.300 |
| Head Style | Double hexagon w/hole |
| Hole Configuration Style | Round longitudinal hole |
| Hole Diameter | 0.037 |
| Hole Quantity | 4 |
| Hole Type | Drilled |
| Length | 2 7/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 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
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Catalog data updated 2026-07-05. Report a data error