bolts › machine bolts
NAS630-49
Bolt
Description
Fastener Length: 3-15/16", Thread: 5/8-18, Thread Length: 57/64
Specifications
| Fastener Length | Between 0.917 inches and 0.947 inches |
|---|---|
| Grip Diameter | Between 0.2485 inches and 0.2495 inches |
| Grip Length | Between 0.552 inches and 0.572 inches |
| Head Height | Between 0.125 inches and 0.140 inches |
| Head Style | Dished hexagon |
| Material | Iron |
| Material Specification | Ams 5731 assn standard single material response or ams 5737 assn standard single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas6304 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Type 2 cl 2 federal specification single treatment response qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.345 inches and 0.395 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 | 1/4 |
| Width Between Flats | Between 0.429 inches and 0.439 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 NAS630-49. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error