The Project Kics Leggdura Lug Nut in M12x1.25 thread pitch is nearly equal in weight as the typical aluminum nut yet, with its duralumin construction, is as tough as OEM. Leggdura Lug Nuts are closed ended for a finished appearance with a Blue anodized coloring. All Leggdura Lug Nuts are sold in sets of 20 consisting of 16 standard 17mm hex lugs with 4 locking lugs.