The Zafety Lug Lock system helps prevent lug nut loosening, wheel damage and potential wheel loss by securing two adjacent wheel nuts together to minimize their ability to rotate and loosen. This design, along with a pre-engineered blend of high-tech thermoplastic resins, provides a high strength-to-weight ratio that retains its flexibility. The system has been proven effective in independent testing. Zafety Lug Lock excels in extreme operating environments, says the company, including chemical exposures and temperature ranges. The system provides a clear visual check of lug nut security and is available in Standard and High Temperature formulations for severe braking applications.