bolts › machine bolts
ST3M571-4-17
Bolt
Description
Fastener Length: 1-17/32", Thread: 1/4-28, Thread Length: 31/64"
Specifications
| Extended Washer Diameter | 0.428 inches minimum and 0.438 inches maximum |
|---|---|
| Extended Washer Thickness | 0.059 inches minimum and 0.079 inches maximum |
| Fastener Length | 1.515 inches minimum and 1.545 inches maximum |
| Grip Diameter | 0.2490 inches minimum and 0.2495 inches maximum |
| Grip Length | 1.052 inches minimum and 1.072 inches maximum |
| Head Height | 0.290 inches minimum and 0.310 inches maximum |
| Head Style | Double hexagon w/hole |
| Length | 1 17/32 |
| Material | Steel |
| Material Specification | Ams 5629 assn std single material response |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.443 inches minimum and 0.493 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.304 inches minimum and 0.313 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- ST3M571-4-10
- ST3M571-4-16
- ST3M571-4-17
- ST3M571-4-18
Cross-reference
No interchangeable or dimensionally similar parts are on record for ST3M571-4-17. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error