bolts › machine bolts
MS9501-08
Military Standard Machine Bolt
Description
Fastener Length: 5/8", Hole Diameter: 1/16", Thread: 1/4-28, Thread Length: 17/32", MS9501 series bolt
Specifications
| Fastener Length | 0.625 |
|---|---|
| Features Provided | Finished head |
| Grip Length | 0.079 inches minimum and 0.099 inches maximum |
| Hardness Rating | 248.0 brinell standard minimum and 341.0 brinell standard maximum |
| Head Height | 0.167 inches minimum and 0.183 inches maximum |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon flats |
| Hole Diameter | 0.060 inches minimum and 0.070 inches maximum |
| Hole Quantity | 1 |
| Hole Type | Drilled |
| Length | 5/8 |
| Material | Iron |
| Material Specification | Ams 5731 assn std single material response |
| Min. Tensile Strength (psi) | 130000 pounds per square inch |
| Minimum Yield Strength | 85000 pounds per square inch |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.526 inches minimum and 0.546 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.430 inches minimum and 0.439 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
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.
- MS9490-08 MS 1/4-28 · 5/8 in · Hexagon Head · Iron
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error