Disc-Lock Europe provides superior vibration-proof fastening systems that are used in a wide variety of industries worldwide, from trucks, trailers and buses, to rail engineering and heavy equipment manufacturing. Our heavy duty self-locking fasteners prevent loosening caused by vibration and shock in high stress applications, this solves the problem of fastener failure. The Disc-lock Safety Wheel Nut is a free spinning, vibration and shock-proof wheel nut, specifically designed to eliminate the risk of wheel loss from Commercial Vehicles. The Disc-Lock Safety Wheel Nut is a leading solution to lose wheel nuts and wheel detachments throughout the transport industry and has 25 years proven track record worldwide. Products – The Disc-Lock Safety Wheel Nut, Locking Nuts and Locking Washers.