TPI (20 pcs) 1/2"-20 Open End Scratch-Free Cold Forged Racing Lug Nuts W/Knurl, BX404542NSF/BC-20,Black Chrome, 20 Lugs w/Socket, 45mm Height, Cone Seat Made from Forged Steel for Strength and Durability Patented spinning washer allows for correct torque and reduces chance to scratch your wheels Open End lugs allow for extended wheel studs Double knurled end for easiy installation and removal Includes 20 Racing Nuts and a 19mm hex socket