Vimax Racing Aluminum Locking Key Cone Seat Short Open End Spline Lug Nuts Black 12x1.5 (Pack of 20) 20pc Brand New Lug Nuts + 1 Key Socket. Type: Spline Drive, Short Length, Open End Seat Type: Cone / Conical Seat (60 Degree Taper) | Thread Pitch: 12x1.5 Greater seating surface to prevent damage during installation. Heat treated coating prevents oxidation and protects the Steel. Precision Threads. Great for showing off your wheels and enhancing the overall look of your vehicle