Brand: McGard Manufacturer's Part Number: 64010 Part Type: Lug Nuts Product Line: McGard Lug Nuts Summit Racing Part Number: MCG-64010 UPC: 083509640106 Lug Nut Thread Size: 1/2 in.-20 Lug Nut Seat Style: Conical seat - 60 degree Lug Nut Head Style: Standard Locking: No Open End Design: No Lug Nut Overall Length (in.): 1.45 Conical Seat Type: Bulge Washer Included: No Lug Nut Material: Steel Lug Nut Color: Chrome Wrench Size Required (in.): 3/4 in. Wrench Size Required (mm): 19mm Quantity: Sold as a set of 4. McGard Lug Nuts McGard lug nuts are designed to last for life. These wheel fasteners are made of restricted chemistry steel for structural integrity， then triple nickel chrome plated in silver or black for lasting beauty. All McGard lug nuts are through-hardened and tempered， reaching the depth of hardness needed for their unsurpassed level of safety (unlike case-hardening， which is only a surface treatment). They're available in a variety of thread sizes， shank lengths and diameters， and seat and conical styles. McGard lug nuts also offer a lifetime guarantee against rust!