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MS21093-0620
Military Standard Machine Screw
Description
Machine Screw
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.344 inches minimum and 0.375 inches maximum |
| Head Diameter | 0.249 inches minimum and 0.279 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Min. Tensile Strength (psi) | 60000 pounds per square inch |
| Screw Material | Steel |
| Screw Surface Treatment | Cadmium |
| Thread Class | 2a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.293 inches minimum and 0.315 inches maximum |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNC |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS1102E06-6 NAS 3/8 in · Flat countersunk · Iron
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Catalog data updated 2026-07-05. Report a data error