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NAS1801-04-9
Machine Screw
Description
Machine Screw
Specifications
| Bearing Surface Of Head Surface Finish | 63.0 microinches |
|---|---|
| Drive Style | Cross |
| Fastener Length | Between 0.546 inches and 0.593 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 |
| Internal Drive Style | Cross recess type 1 |
| Material | Steel |
| Material Specification | Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6322 assn standard 2nd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1801 professional/industrial association standard |
| 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 | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.432 inches and 0.561 inches |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series | UNJC |
| Thread Series Designator | UNJC |
| Thread Surface Finish | 32.0 microinches |
| Width Between Flats | Between 0.181 inches and 0.189 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 NAS1801-04-9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error