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MS51023-95
Military Standard Screw
Description
Fastener Length: 5/8", Thread: 1/2-20, Head Width: 1/4", Thread Length: 5/8"
Specifications
| Fastener Length | 0.615 inches minimum and 0.635 inches maximum |
|---|---|
| Head Style | Headless (setscrew) |
| Internal Drive Style | Hexagon |
| Length | 5/8 |
| Material | CRES |
| Material Specification | 66 fed std all material responses |
| Nondefinitive Specification/Std Data | 1 type and 4 style |
| Point Style | Cup |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | 0.615 inches minimum and 0.635 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNF |
| Thread Size | 1/2 |
| Width Across Flats | 0.250 |
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.
- MS51031-149 MS 1/2-20 · 5/8 in · Headless (setscrew) · Steel
- MS51964-108 MS 1/2-20 · 5/8 in · Headless (setscrew) · Steel
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Catalog data updated 2026-07-05. Report a data error