nuts › self-locking extended washer nuts
42FLW720
Locking Extended Washer Nut Self
Description
Thread Size: 7/16", Head Width: 9/16
Specifications
| Hardness Rating | 40.0 rockwell c maximum |
|---|---|
| Locking Feature | Free-running all metal design |
| Lubrication | Dry film lubricant |
| Material | Steel |
| Material Specification | Ams 6280 assn std single material response or ms 6300 assn std single material response or ams 6322 assn std single material response |
| Nut Style | Double hexagon |
| Overall Height | 0.496 inches minimum and 0.516 inches maximum |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416, ty i, cl 2 fed spec single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNJF |
| Thread Size | 0.4375 |
| Washer Outside Diameter | 0.713 inches minimum and 0.763 inches maximum |
| Washer Thickness | 0.059 inches minimum and 0.079 inches maximum |
| Width Across Flats | 0.533 inches minimum and 0.564 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for 42FLW720. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error