bolts › machine bolts
MS9503-20
Military Standard Bolt
Description
Fastener Length: 1-5/8", Thread: 3/8-24, Thread Length: 1-3/64"
Specifications
| Fastener Length | 1.625 |
|---|---|
| Grip Length | 0.565 inches minimum and 0.625 inches maximum |
| Head Height | 0.219 |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon flats |
| Hole Quantity | 1 |
| Hole Type | Drilled |
| Length | 1 5/8 |
| Material | Iron |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 1.000 inches minimum and 1.060 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 3/8 |
| Width Between Flats | 0.553 inches minimum and 0.564 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 MS9503-20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error