bolts › machine bolts
AS3580-4-16
Machine Bolt
Description
Fastener Length: 0-63/64", Thread: 1/4-28, Thread Length: 3/4", 12 point, AS3580 series bolt
Specifications
| Extended Washer Diameter | Between 0.428 inches and 0.448 inches |
|---|---|
| Extended Washer Thickness | Between 0.060 inches and 0.080 inches |
| Fastener Length | Between 0.990 inches and 1.010 inches |
| Head Height | Between 0.293 inches and 0.313 inches |
| Head Style | Double hexagon extended washer |
| Material | Nickel |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.750 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Width Between Flats | 0.313 |
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 AS3580-4-16. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error