[GREATER QUALITY]: TIROL Semi truck lug nuts, meet and exceed the astm class 10.9 and sae grade 8. Torque: 450 - 500 ft/lbs
[PRECISION SURFACE TREATMENT]: Black phosphate coating. 72-hour salt spray test, better rust prevention performance
[SPECIFICALLY MANUFACTURED FOR HEAVY-DUTY TRUCKS]: For heavy duty truck (class 8) steel single wheels with hub-piloted mounting system
[DESIGNED BY PROFESSIONAL ENGINEERS]: The design of two-piece flange washer and sleeve makes the sleeve wheel nuts fasten the wheels more and longer the life of wheels