bolts › machine bolts
ST3M507-4-7
Bolt
Description
Fastener Length: 55/64", Thread: 1/4-28, Thread Length: 7/16"
Specifications
| Fastener Length | 0.819 inches minimum and 0.866 inches maximum |
|---|---|
| Head Height | 0.154 inches minimum and 0.174 inches maximum |
| Head Style | Double hexagon |
| Length | 55/64 |
| Material | Steel |
| Shoulder Diameter | 0.280 inches minimum first shoulder and 0.2807 inches maximum first shoulder |
| Shoulder Length | 0.428 inches minimum first shoulder and 0.448 inches maximum first shoulder |
| Shoulder Shape | Round first shoulder |
| Specification Data | 76301-st3-507 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.371 inches minimum and 0.438 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| 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.
- ST3M507-4-5
- ST3M507-4-6
- ST3M507-4-7
- ST3M507-4-15
Cross-reference
No interchangeable or dimensionally similar parts are on record for ST3M507-4-7. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error