McGard Lug Nut 12mm X 1.50 Bulge Conical Seat (4) 01-1620 Supports up to 3600 HP

Supports up to 3600 HP gas

1967-1974 GMC P35/P3500 Van

This unit comes with dual 49-State federal approved cats and 3/8in

heavy-duty blades that have been moved up to fit late model blocks

1971-1990 Chevrolet Caprice

McGard Lug Nut 12mm X 1.50 Bulge Conical Seat (4) 01-1620 Supports up to 3600 HPChrome 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