bolts › machine bolts
MS9490-09
Military Standard Machine Bolt
Description
Length: 11/16", Thread: 1/4-28, Thread Length: 39/64", MS9490 series bolt
Specifications
| Fastener Length | 0.688 |
|---|---|
| Features Provided | Finished head |
| Grip Length | Between 0.079 inches and 0.099 inches |
| Head Height | 0.156 |
| Head Style | Hexagon Head |
| Material | Iron |
| Material Specification | Ams 5731 assn standard single material response |
| Minimum Yield Strength | 85000 pounds per square inch |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.589 inches and 0.609 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 |
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.
- MS9452-09 MS 1/4-28 · 11/16 in · Hexagon Head · CRES
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Catalog data updated 2026-07-05. Report a data error