screws › machine screws
MS21093-345
Military Standard Machine Screw
Description
flat head
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Departure From Cited Designator | As mod by matl and locking feature |
| Fastener Length | Between 0.469 inches and 0.500 inches |
| Head Diameter | Between 0.348 inches and 0.385 inches |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Locking Feature | Pellet or strip |
| Min. Tensile Strength (psi) | 60000 pounds per square inch |
| Nondefinitive Specification/Std Data | 3 type and 3c style |
| Screw Material | Steel or plastic |
| Screw Material Specification | 66 federal standard single material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416 type 2 cl 3 federal specification single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.324 inches and 0.428 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
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 MS21093-345. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error