bolts › shear bolts
NAS6604-9
Close Tolerance Bolt
Description
NAS6604 Shear Bolts Thread 1/4-28
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Fastener Length | Between 0.972 inches and 1.002 inches |
| Grip | 0.562 in |
| Grip Diameter | Between 0.2485 inches and 0.2495 inches |
| Grip Length | Between 0.552 inches and 0.572 inches |
| Grip Tolerance | ±0.010 in |
| Head Height | Between 0.125 inches and 0.140 inches |
| Head Style | Dished hexagon |
| Head Type | Hexagon |
| Industry Standards/Certification | NAS6604 |
| Length | 0.987 in |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 00-202-1629 |
| NSN | 5306-00-202-1629 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 2 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.400 inches and 0.450 inches |
| 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 | 0.2500-28, 1/4 |
| Weight | .0015 lb |
| Width Between Flats | Between 0.430 inches and 0.439 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS6604-9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error