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NAS1801-5-8
Screw
Description
Fastener Length: 17/32", Thread: 5/16-24, Thread Length: 17/32
Specifications
| Fastener Length | 0.484 inches minimum and 0.531 inches maximum |
|---|---|
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Height | 0.156 inches minimum and 0.171 inches maximum |
| Head Style | Hexagon Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 17/32 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Steel comp e4340 or steel comp 8740 |
| Screw Material Specification | Mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams6322 mil spec 2nd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416,type 2 class 2 fed spec single treatment response |
| Specification Data | 80205-nas1801 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.401 inches minimum and 0.531 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.429 inches minimum and 0.439 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 NAS1801-5-8. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error