The Nord-Lock wheel nut?

The new Nord-Lock wheel nut effectively eliminates unintentional loosening of wheel nuts. When assembled correctly, the Nord-Lock wheel nut cannot loosen by itself. It represents a simple and cost effective way to make wheels safe and secure more productive and efficient operations.

The Nord-Lock wheel nut offers outstanding performance compared with conventional wheel nuts, as shown in independent comparative testing.The product is based on our proven wedge-locking technology, suits flat-faced steel rims, M22x1.5 studs and is easy to install.