- Nylon Insert Lock Nuts do not readily loosen when placed on bolts
 - Useful for holding tight, where machine vibration would otherwise loosen the fastener
 
| Type | Nut | 
| Style | Nylon Insert Lock | 
| Size | 1/2"-20 | 
| Material | Carbon Steel | 
| Grade/Class | 2 | 
| Thread Direction | Right | 
| Thread Type | SAE / UNF (Fine) | 
| Height | 29/64" | 
| Wrench Size | 11/16" |