McGard bulge cone‑seat lug nut set (1/2-20 thread), black, four pieces designed with an extended seating surface to match wider seating on some aluminum wheels. Each lug nut is fully machined from restricted‑chemistry steel and through‑hardened, then plated with multiple nickel layers and a microporous chrome finish topped with black PVD to resist rust, chipping and peeling.
McGard Hex Lug Nut (Cone Seat Bulge Style) 1/2-20 / 3/4 Hex / 1.45in. Length (4-pack) - Black