bolts › machine bolts
NAS501-4-4A
Bolt
Description
Fastener Length: 1/2", Thread: 1/4-28, Thread Length: 15/32"
Specifications
| Fastener Length | 0.531 |
|---|---|
| Features Provided | Finished head |
| Grip Length | 0.062 |
| Head Height | 0.156 |
| Head Style | Hexagon Head |
| Length | 1/2 |
| Material | CRES |
| Material Specification | Qq-s-763,cl 8,ty a fed spec all material responses |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.469 inches minimum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Width Between Flats | 0.438 |
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 NAS501-4-4A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error