In the event the wheel nut is tightened, the tooth in the Nord-Lock washers grip and lock the mating surfaces, permitting motion only across the cam faces. Any rotation of your wheel nut is blocked because of the wedge-result of the cams. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://engineering-variable-freq09752.blogdanica.com/28146717/5-tips-about-aluminum-parts-you-can-use-today