screws › screw
NAS1131-4
Close Tolerance Screw
Description
Close Tolerance Screw
Specifications
| Fastener Length | 0.526 |
|---|---|
| Grip Diameter | 0.1365 inches minimum and 0.1375 inches maximum |
| Grip Length | 0.250 |
| Head Diameter | 0.256 inches minimum and 0.270 inches maximum |
| Head Height | 0.087 inches minimum and 0.097 inches maximum |
| Head Style | Pan Head |
| Internal Drive Style | Offset cruciform (torque set) |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1131 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416 type 2 class 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.276 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJC |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1131-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error