screws › close tolerance screws
NAS7401-4
Screw
Description
Fastener Length: 17/32", Thread: 6-32, Thread Length: 1/4"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.511 inches minimum and 0.541 inches maximum |
| Grip Diameter | 0.1365 inches minimum and 0.1375 inches maximum |
| Grip Length | 0.240 inches minimum and 0.260 inches maximum |
| Head Diameter | 0.246 inches minimum and 0.280 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 17/32 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Part Name Assigned By Controlling Agency | Navy special project |
| Specification Data | 80205-nas7401 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty2,cl2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.276 |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJF |
| Thread Size | 6 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS7401-3
- NAS7401-4
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS7401-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error