screws › setscrews
MS51021-101
Military Standard Setscrew
Description
Fastener Length: 1/8", Thread: 4-40, Head Width: 1/16", Thread Length: 1/8"
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 0.115 inches and 0.135 inches |
| Head Style | Headless |
| Internal Drive Style | Hexagon |
| Length | 1/8 |
| Locking Feature | Patch threads or pellet threads or strip threads |
| Material | Steel |
| Material Specification | 66 federal standard all material responses |
| Nondefinitive Specification/Std Data | 1 type and 4 style |
| Point Style | Cup |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.115 inches and 0.135 inches |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 4 |
| Width Across Flats | 0.05 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS51021-101. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error