bolts › machine bolts
NAS1004-21A
Bolt
Description
Fastener Length: 1-27/32", Thread: 1/4-28, Thread Length: 17/32"
Specifications
| Fastener Length | 1.856 |
|---|---|
| Grip Length | 1.312 |
| Head Height | 0.156 |
| Head Style | Hexagon Head |
| Length | 1 27/32 |
| Material | Iron |
| Material Specification | Ams 5731 assn std single material response |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.544 |
| 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 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1004-21A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error