AccuWheel LNS-09160B5 Small Diameter Acorn Spline Drive Black Lug Nuts with Key (9/16" Thread Size) - Pack of 20 Lugnuts Intended for using with custom wheels that require slim lug nuts for small lug holes. Cold Forged Carbon Steel with enhanced Rigidity. Proprietary cathodic black coating, gives the durability of chrome and the look of satin black paint. Tuner Style 60 degree Cone Seat Spline Lug Nuts. Width: 0.9"; Height: 2.0"; Weight: 2.4oz each. Lug Nut Kits include 20 of 9/16" spline nuts and 1 key for spline nuts. Please check Product Description for Vehicle Fitments