screws › socket head cap screws
MS21295-20
Military Standard Screw
Description
Fastener Length: 7/16", Thread: 6-32, Head Width: 7/64", Thread Length: 25/64"
Specifications
| Fastener Length | 0.412 inches minimum and 0.452 inches maximum |
|---|---|
| Hardness Rating | 80.0 rockwell b minimum |
| Head Diameter | 0.218 inches minimum and 0.225 inches maximum |
| Head Height | 0.134 inches minimum and 0.138 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 7/16 |
| Locking Feature | Patch threads or pellet threads or strip threads |
| Material | Steel |
| Material Specification | 66 fed std single material response |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.350 inches minimum and 0.390 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNC |
| Thread Size | 6 |
| Width Across Flats | 0.109 inches minimum and 0.111 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 MS21295-20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error