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MS21262-50
Military Standard Machine Screw
Description
Fastener Length: 7/8", Thread: 1/4-28, Head Width: 3/16", Thread Length: 13/16", MS21262 series screw
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | 0.875 |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.365 inches and 0.375 inches |
| Head Height | Between 0.244 inches and 0.250 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 7/8 |
| Locking Feature | Patch threads or pellet threads or strip threads |
| Material | Steel |
| Material Specification | 66 federal standard single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 130000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 3 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.819 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4 |
| Width Across Flats | Between 0.188 inches and 0.190 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21262-50. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error