screws › machine screws
MS51576-28
Military Standard Machine Screw
Description
Machine Screw
Specifications
| Fastener Length | 1.156 inches minimum and 1.218 inches maximum |
|---|---|
| Head Diameter | 0.468 inches minimum and 0.531 inches maximum |
| Head Height | 0.187 inches minimum and 0.249 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Material | CRES |
| Shoulder Diameter | 0.311 inches minimum first shoulder and 0.312 inches maximum first shoulder |
| Shoulder Length | 0.997 inches minimum first shoulder and 1.003 inches maximum first shoulder |
| Shoulder Shape | Round first shoulder |
| Thread Class | 2a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.406 inches minimum and 0.468 inches maximum |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNC |
| Width Across Flats | 0.156 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS51576-5
- MS51576-6
- MS51576-9
- MS51576-11
- MS51576-28
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS51576-28. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error