screws › socket head cap screws
MS21091-3003
Military Standard Socket Head Cap Screw
Description
Fastener Length: 39/64", Thread: 10-32, Thread Length: 7/16
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 0.578 inches minimum and 0.624 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Diameter | 0.327 inches minimum and 0.385 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 39/64 |
| Locking Feature | Patch threads or pellet threads or strip threads |
| Material | Steel |
| Material Specification | Ams 6300 assn std 1st material response or mil-s-6050 mil spec 2nd material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.381 inches minimum and 0.447 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNF |
| Thread Size | 10 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21091-3003
- MS21091-3006
- MS21091-06002
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21091-3003. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error