Material: Meng Steel. Surface treatment: black oxide.
Replace traditional hex nuts to reduce weight or use in applications requiring lower torque.
Provide elasticity, firm grip, can be permanently fixed, widely used in mechanical equipment, industrial production of shock absorption and insulation.
5/8 inch shaft. Phosphate oil coating to provide additional corrosion protection.
The lock washer exerts an elastic force between the head of the fastener and the base material to generate greater friction and rotation resistance.