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NAS1156-20
Screw
Description
Fastener Length: 1-21/32", Thread: 3/8-24, Thread Length: 13/32"
Specifications
| Countersink Angle | 101.0 degrees |
|---|---|
| Fastener Length | 1.626 inches minimum and 1.656 inches maximum |
| Grip Diameter | 0.3735 inches minimum and 0.3745 inches maximum |
| Grip Length | 1.240 inches minimum and 1.260 inches maximum |
| Head Diameter | 0.704 inches minimum and 0.762 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 1 21/32 |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1156 professional/industrial association standard |
| Surface Finish | 32.0 microinches |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty2,cl2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 0.366 inches minimum and 0.416 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 3/8 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1156-17
- NAS1156-20
- NAS1156-22
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1156-20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error