bolts › machine bolts
STD3053-31
Bolt
Description
Fastener Length: 1/2", Thread: 1/4-28, Thread Length: 1/2"
Specifications
| Fastener Length | 0.490 inches minimum and 0.510 inches maximum |
|---|---|
| Features Provided | Finished head |
| Head Height | 0.146 inches minimum and 0.166 inches maximum |
| Head Style | Hexagon Head |
| Length | 1/2 |
| Material | CRES |
| Material Specification | Ams 5637 assn std single material response |
| Precious Material | Silver |
| Surface Finish | 32.0 microinches threads, 63.0 microinches bearing surface of head |
| Surface Treatment | Silver |
| Surface Treatment Specification | Ams 2410 assn std single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.490 inches minimum and 0.510 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| 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.
- STD3053-2
- STD3053-3
- STD3053-25
- STD3053-31
Cross-reference
No interchangeable or dimensionally similar parts are on record for STD3053-31. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error