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NAS1801-04-10
Hex Head Screw
Description
Hex Head Screw
Specifications
| Bolt Head Shape | Hexagon |
|---|---|
| Country of Origin | USA |
| Fastener Length | Between 0.595 inches and 0.625 inches |
| Hardness Rating | Between 36.0 rockwell c and 40.0 rockwell c |
| Head Height | Between 0.049 inches and 0.060 inches |
| Head Style | Hexagon Head |
| Head Type | Cruciform Recess |
| Industry Standards/Certification | NAS1801 |
| Internal Drive Style | Cross recess type 1 |
| Length | 0.625 in, 5/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-034-6620 |
| NSN | 5305-01-034-6620 |
| Screw Material | Steel comp 4037 or steel comp 8630 |
| Screw Material Specification | Ams6300 assn standard 1st material response or mil-s-6050 military specification 2nd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Type 2 cl 2 federal specification single treatment response qq-p-416 |
| Sold In | Per Package |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.545 inches and 0.625 inches |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNJC |
| Thread Size | 4-40 |
| Thread Type | Full Thread |
| Weight | 0.001 lb |
| Width Between Flats | Between 0.181 inches and 0.187 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 NAS1801-04-10. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error