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MS21262-28
Military Standard Socket Head Cap Screw
Description
Cadmium plated alloy steel, self-locking screw, hexagon wrenching socket
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | 0.500 |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.262 inches and 0.270 inches |
| Head Height | Between 0.159 inches and 0.164 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Locking Feature | Patch threads or pellet threads or strip threads |
| Material | Steel |
| Min. Tensile Strength (psi) | 130000 pounds per square inch |
| NIIN | 00-027-5752 |
| NSN | 5305-00-027-5752 |
| Nondefinitive Specification/Std Data | 6 type |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Class 3 federal specification all treatment responses type2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.164 |
| Thread Direction | Right-hand |
| Thread Length | 0.438 |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 8 |
| Weight | .005 lb |
| Width Across Flats | Between 0.141 inches and 0.143 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21262-10
- MS21262-28
- MS21262-29
- MS21262-54
- MS21262-80
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21262-28. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error