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MS21295-9
Military Standard Screwlock
Description
Fastener Length: 5/16", Thread: 6-32, Head Width: 9/64", Thread Length: 5/16"
Specifications
| Fastener Length | 0.297 inches minimum and 0.327 inches maximum |
|---|---|
| Hardness Rating | 80.0 rockwell c minimum fastener |
| Head Diameter | 0.262 inches minimum and 0.270 inches maximum |
| Head Height | 0.159 inches minimum and 0.164 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 5/16 |
| Locking Feature | Patch threads |
| Material | CRES |
| Min. Tensile Strength (psi) | 8000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Stm a380 assn std single treatment response fastener |
| Thread Class | 3a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.235 inches minimum and 0.327 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNC |
| Thread Size | 6 |
| Width Across Flats | 0.141 inches minimum and 0.144 inches maximum |
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 MS21295-9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error