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NAS630-54
Machine Bolt
Description
Fastener Length: 4-1/4", Thread: 5/8-18, Thread Length: 57/64"
Specifications
| Extended Washer Diameter | Between 1.040 inches and 1.050 inches |
|---|---|
| Extended Washer Thickness | Between 0.140 inches and 0.160 inches |
| Fastener Length | Between 4.233 inches and 4.263 inches |
| Grip Diameter | Between 0.6230 inches and 0.6240 inches |
| Grip Length | Between 3.365 inches and 3.385 inches |
| Hardness Rating | 39.0 rockwell c and 43.0 rockwell c |
| Head Height | Between 0.608 inches and 0.628 inches |
| Head Style | Double hexagon w/hole |
| Material | Steel |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| Specification Data | 80205-nas630 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Nas 672 assn standard single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.625 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.848 inches and 0.898 inches |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 5/8 |
| Width Between Flats | Between 0.682 inches and 0.691 inches |
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 NAS630-54. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error