bolts › machine bolts
MS9501-13
Military Standard Machine Bolt
Description
Fastener Length: 15/16", Hole Diameter: 1/16", Thread: 1/4-28, Thread Length: 51/64", hexagon head, MS9501 series bolt
Specifications
| Fastener Length | 0.938 |
|---|---|
| Features Provided | Finished head |
| Grip Length | Between 0.128 inches and 0.188 inches |
| Hardness Rating | 24.0 rockwell c and 35.0 rockwell c |
| Head Height | Between 0.167 inches and 0.183 inches |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon flats |
| Hole Diameter | Between 0.060 inches and 0.070 inches |
| Hole Quantity | 1 |
| Hole Type | Drilled |
| Material | Iron |
| Material Specification | Ams 5731 assn standard 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 | Between 0.750 inches and 0.810 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Width Between Flats | Between 0.430 inches and 0.439 inches |
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 MS9501-13. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error