screws › machine screws
NAS1801-04-14
Hex Head Screw
Description
Hex Head Screw
Specifications
| Country of Origin | USA |
|---|---|
| Fastener Length | 0.859 inches minimum and 0.906 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Height | 0.049 inches minimum and 0.060 inches maximum |
| Head Style | Hexagon Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 29/32 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-376-1179 |
| NSN | 5305-01-376-1179 |
| Screw Material | Steel comp 4340 and steel comp 8740 |
| Screw Material Specification | Mil-s-5000 mil spec 1st material response and ams 6322 assn std 2nd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416,cl2 ty2 fed spec single treatment response |
| Sold In | Per Package |
| Specification Data | 80205-nas1801 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.809 inches minimum and 0.906 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNJC |
| Thread Size | 4 |
| Weight | 0.001 lb |
| Width Between Flats | 0.181 inches minimum and 0.189 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 NAS1801-04-14. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error