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NAS1218-4-22
Bolt
Description
Fastener Length: 1-13/16", Thread: 1/4-28, Thread Length: 7/16"
Specifications
| Fastener Length | 1.786 inches minimum and 1.816 inches maximum |
|---|---|
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.477 inches minimum and 0.492 inches maximum |
| Head Height | 0.140 inches minimum and 0.150 inches maximum |
| Head Style | Pan no. 2 |
| Internal Drive Style | High-torque |
| Length | 1 13/16 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150 |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416,type 2 class 2 fed spec single treatment response |
| Specification Data | 80205-nas1218 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.401 inches minimum and 0.451 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1218-4-9
- NAS1218-4-21
- NAS1218-4-22
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1218-4-22. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error