Genuine AROSPEED Lug Nuts Set Do not exceed 90 ft-lbs of torque. Torque wrench required for proper installation. Compatible with: Vehicles with 4 or 5 Lug M12x1.5 Threads Only Fits Wheels with Acorn (Conical Taper) Seats 100% Brand New Professional Installation is Highly Recommended Installation Instruction is NOT Included Features and Benefits: 20 Lug Nuts: Heavy Duty T6-7075 Forged Aluminum Construction M12 x 1.25 Thread Pitch 25mm Outside Diameter / 60mm Height Anodized Finish Aluminum Open End Design Fits Conical Seat Wheels Weighs Approximately 1.06 oz Each Lug Nut Instructions not included with most of our products. Professional installation is recommended on our performance parts.