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MS51023-66
Military Standard Machine Screw
Description
Fastener Length: 49/64", Thread: 1/4-28, Head Width: 1/8", Thread Length: 49/64
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 0.730 inches and 0.770 inches |
| Head Style | Headless (setscrew) |
| Internal Drive Style | Hexagon |
| Material | CRES |
| 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 | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.730 inches and 0.770 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4 |
| Width Across Flats | 0.125 |
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 MS51023-66. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error