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MS21250-04020
1.762 Inch Total Length MS21250 Hexagon Socket Head External Wrenching Bolt
Description
Fastener Length: 1-3/4", Thread: 1/4-28, Thread Length: 31/64", 12 point
Specifications
| Country of Origin | USA |
|---|---|
| Extended Washer Diameter | Between 0.428 inches and 0.438 inches |
| Extended Washer Thickness | 0.069 |
| Fastener Length | 1.762 |
| Features | External Wrenching |
| Grip | 1.250 in |
| Grip Diameter | Between 0.2485 inches and 0.2495 inches |
| Grip Length | 1.250 |
| Grip Tolerance | ±0.010 in |
| Hardness Rating | 39.0 rockwell c and 43.0 rockwell c |
| Head Height | 0.300 |
| Head Style | Double hexagon |
| Head Type | 12 Point Hexagon, Flanged |
| Industry Standards/Certification | MS21250 |
| Length | 1 3/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| Pressure | 180 ksi |
| Suggested Nuts for the Bolts | 42FLW |
| Surface Treatment | Cadmium and chromate |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.492 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 0.2500-28, 1/4 |
| Total Length | 1.762 in |
| Weight | .005 lb |
| Width Between Flats | Between 0.304 inches and 0.313 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21250-04020. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error