The appropriate wheel nut washers will ensure your wheel nuts are seated properly and safely to the rim. They will protect your rim face from damage as well as prevent the 5/8" lug nut from bottoming out on the 5/8" stud shoulder. It is very important that you choose the correct washer for your particular wheel/stud combination. Each washer comes with different thicknesses to suit a variety of applications. Manufactured from premium T6061 aluminium that protects from deformation under heavy clamping loads. These washers are black anodized for corrosion resistance and are sold individually.