Spring washers are a left-hand helix and allow the thread to be tightened in a right-hand direction only.
After fully fixed, the groove edge and material surface in the nut.
Apply for electrical connections on household and commercial appliances and industrial products, in order to screw loosening or disperse pressure.
Wide Applications: Suitable for electrical connections of domestic and commercial appliances,automotive and marine applications.Spring washers can prevent nut from automatic loosening,