- Lock washers are designed to keep threaded fasteners from loosening
 - They prevent vibrations and have external teeth to prevent rotation
 
| Type | Lockwasher | 
| Style | Split | 
| Size | M3 | 
| Material | Spring Steel | 
| Design Usage | Tension | 
| Din No. | 127B | 
| Inside Dia. | 3.1 mm | 
| Outside Dia. | 3.2 mm | 
| Thickness | 0.8 mm |