bolts › close tolerance bolts
NAS1580A8T22
Close Tolerance Bolt
Description
Fastener Length: 2-5/32", Thread: 1/2-20, Thread Length: 25/32
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 2.128 inches minimum and 2.158 inches maximum |
| Grip Diameter | 0.4985 inches minimum and 0.4995 inches maximum |
| Grip Length | 1.365 inches minimum and 1.385 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.951 inches minimum and 1.014 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 2 5/32 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1580 professional/industrial association standard |
| Surface Finish | 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty2 cl2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | 0.743 inches minimum and 0.793 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNJF |
| Thread Size | 1/2 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1580A8T22. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error