Patented worldwide, the Disc-Lock safety wheel nut is a vibration- and-shockproof lug nut that virtually eliminates the risk of wheel loss from trucks, trailers, and buses.
The Disc-Lock nut can be installed and removed like a conventional lug nut. However, it has a positive locking system with rising cams joined together to form one assembly. When subjected to road shock or vibration, the interlocking cams of the nut rise against each other. As the angle of the cams is greater than the pitch angle of the thread on the stud, a wedging action takes place and the nut locks and will not come loose.
For more information, contact Disc-Lock International, Suite F, 1924 S Pacific Coast Hwy, Redondo Beach CA 90277.