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MS27576-5-22
Military Standard Machine Bolt
Description
Fastener Length: 1-55/64", Thread: 1/4-24, Thread Length: 3/8
Specifications
| Distance From Head Largest Bearing Surface To Shank Hole Center | 1.738 inches minimum first hole and 1.768 inches maximum first hole |
|---|---|
| Fastener Length | 1.853 inches minimum and 1.873 inches maximum |
| Grip Diameter | 0.3108 inches minimum and 0.3117 inches maximum |
| Grip Length | 1.375 inches minimum and 1.391 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 41.0 rockwell c maximum |
| Head Height | 0.157 inches minimum and 0.172 inches maximum |
| Head Style | Dished hexagon |
| Length | 1 55/64 |
| Material | Steel |
| Shank Unthreaded Hole Diameter | 0.076 inches minimum first hole and 0.086 inches maximum first hole |
| Special Features | W/retaining element on shank |
| Surface Finish | 63.0 microinches bearing surface of head, 63.0 microinches grip |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 cl 2 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.311 inches minimum and 0.378 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.492 inches minimum and 0.502 inches maximum |
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 MS27576-5-22. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error