screws › machine screws
MS21093-0202
Military Standard Machine Screw
Description
Fastener Length: 1/4", Thread: 2-56, Thread Length: 13/64"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.219 inches minimum and 0.250 inches maximum |
| Head Diameter | 0.150 inches minimum and 0.182 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/4 |
| Locking Feature | Patch or pellet or strip |
| Material | CRES |
| Nondefinitive Specification/Std Data | 3 type and 3c style |
| Screw Material | Steel corrosion resisting |
| Screw Material Specification | 66 fed std single material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416, ty 2, cl 3 fed spec single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.086 |
| Thread Direction | Right-hand |
| Thread Length | 0.140 inches minimum and 0.218 inches maximum |
| Thread Qty | 56 |
| Thread Qty Per Inch (tpi) | 56 |
| Thread Series Designator | UNC |
| Thread Size | 2 |
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 MS21093-0202. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error