- 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 | Low Profile Nylon Insert Self-locking | 
| Size | 5/8"-11 | 
| Material | Carbon Steel | 
| Grade/Class | 2 | 
| Thread Direction | Right | 
| Thread Type | USS / UNC (Coarse) |