This is a set of 20 M12X1.50 Bulge Acorn Lug Nuts with a triple layered chrome finish, suitable for selective aftermarket and factory wheels. The nuts are made of carbon steel with a polished chrome exterior finish. They feature a hexagonal body with a bulge-acorn top and an external hex drive system. The thread size is M12 x 1.5 and they are fully threaded. Each nut has a diameter of 0.9 inches and a weight of 2.07 pounds.