Star Washer – DIN 6797, IS 5371
Star washers are made to increase the locking force by resisting torque applied by the nut, preventing it from unscrewing or separating. They feature either an internal or an external tab. Internal tabs run along the inner diameter where as the external tab is located on the outer diameter providing a superior locking capability.
All manufactured star washers are checked on various parameters such as diameter, various thicknesses, and hardness.