screws › machine screws
NAS1143-8
Machine Screw
Description
Fastener Length: 25/32", Thread: 10-32, Thread Length: 1/4
Specifications
| Drive Style | Torq |
|---|---|
| Fastener Length | Between 0.761 inches and 0.791 inches |
| Grip Diameter | Between 0.1885 inches and 0.1895 inches |
| Grip Length | 0.500 |
| Hardness Rating | 36.0 rockwell c and 40.0 rockwell c |
| Head Diameter | Between 0.361 inches and 0.385 inches |
| Head Height | Between 0.103 inches and 0.118 inches |
| Head Style | Pan Head |
| Internal Drive Style | Offset cruciform (torque set) |
| Material | Steel |
| Material Specification | Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1143 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 3 federal specification all treatment responses type 2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.192 |
| Thread Direction | Right-hand |
| Thread Length | 0.276 |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 10 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1143-8. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error