screws › setscrews
MS51021-58
Military Standard Setscrew
Description
Fastener Length: 3/8", Thread: 1/4-20, Head Width: 1/8", Thread Length: 3/8
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | 0.375 |
| Head Style | Headless (setscrew) |
| Internal Drive Style | Hexagon |
| Length | 3/8 |
| Material | Steel |
| Material Specification | 66 federal standard all material responses |
| Point Style | Cup |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.375 |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 1/4 |
| Width Across Flats | 0.125 |
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.
- MS51029-51 MS 1/4-20 · 3/8 in · Headless (setscrew) · CRES
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Catalog data updated 2026-07-05. Report a data error