screws › close tolerance screws
NAS7401-3
Close Tolerance Screw
Description
Fastener Length: 15/32", Thread: 6-32, Thread Length: 1/4
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Fastener Length | Between 0.449 inches and 0.479 inches |
| Grip Diameter | Between 0.1365 inches and 0.1375 inches |
| Grip Length | Between 0.178 inches and 0.198 inches |
| Head Diameter | Between 0.246 inches and 0.280 inches |
| Head Style | Flat countersunk |
| 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-nas7401 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 2 federal specification single treatment response qq-p-416 type 2 |
| 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 | UNJC |
| 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 NAS7401-3. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error