bolts › shear bolts
NAS624-14
External Wrenching Bolt
Description
External Wrenching Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Extended Washer Diameter | 0.433 |
| Extended Washer Thickness | 0.069 |
| Fastener Length | 1.345 inches minimum and 1.375 inches maximum |
| Features | External Wrenching |
| Grip | 0.875 in |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.855 inches minimum and 0.865 inches maximum |
| Hardness Rating | 39.0 rockwell c minimum and 43.0 rockwell c maximum |
| Head Height | 0.300 |
| Head Style | Double hexagon w/hole |
| Head Type | 12 Point Hexagon |
| Industry Standards/Certification | NAS624 |
| Length | 1 3/8 |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| NIIN | 00-543-4628 |
| NSN | 5306-00-543-4628 |
| Pressure | 180000 psi |
| Specification Data | 80205-nas624 professional/industrial association standard |
| Suggested Nuts for the Bolts | 42FLW |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Nas 672 assn std single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.460 inches minimum and 0.510 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 0.2500-28, 1/4 |
| Total Length | 1.360 in |
| Weight | 0.025 lb |
| Width Between Flats | 0.306 inches minimum and 0.315 inches maximum |
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 NAS624-14. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error