screws › machine screws
NAS1802-04-4
Machine Screw
Description
Fastener Length: 9/32", Thread: 4-40, Thread Length: 13/64", NAS1802 series screw
Specifications
| Fastener Length | Between 0.234 inches and 0.281 inches |
|---|---|
| Head Height | Between 0.049 inches and 0.060 inches |
| Head Style | Dished hexagon |
| Internal Drive Style | Cross recess type 1 |
| Material | Iron |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams5731 assn standard single material response or ams5737 assn standard single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Specification Data | 80205-nas1802 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.217 inches and 0.218 inches |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNJC |
| Thread Size | 4 |
| 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 NAS1802-04-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error