Chrome plated lug nuts lead a tough life.; Think about it, harsh elements, nasty corrosive wheel cleaners and lead-foot drivers.; Not to mention overzealous impact guns and loose fitting lug wrenches.; This kind of treatment destroys ordinary lug nuts which turns even the best looking wheels ugly.; Tough Nuts can take the punishment and keep your wheels looking beautiful.; Tough Nuts are guaranteed for life not to rust, chip or peel.; McGard manufactures lug nuts in the USA to meet or exceed O.E.M.; standards for safety and durability.; Every lug nut is fully machined from restricted chemistry steel made specifically for McGard and through-hardened for its unsurpassed level of safety.; McGard’s plating process includes several layers of nickel and one layer of microporous chrome with black PVD producing a superior finish while protecting against rust.; Tough Nuts are designed and built for the real world, because life is tough.; Bulge Style Cone Seat lug nuts have an extended seating surface that is designed to match the wider seating surface used on some aluminum wheels.; For use with steel or aluminum wheels with exposed decorative lug nuts that are tapered at the bottom.; This product may contain globally sourced materials/components.