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NAS1122-4
Close Tolerance Screw
Description
Close Tolerance Screw
Specifications
| Fastener Length | 0.511 inches minimum and 0.541 inches maximum |
|---|---|
| Grip Diameter | 0.1625 inches minimum and 0.1635 inches maximum |
| Grip Length | 0.250 |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.255 inches minimum and 0.270 inches maximum |
| Head Height | 0.088 inches minimum and 0.102 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Offset cruciform (torque set) |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1122 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 | Qq-p-416,type 2,class 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.164 |
| Thread Direction | Right-hand |
| Thread Length | 0.276 inches minimum |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJC |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1122-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error