Highlights Fits Wheels Stud Thread Pitch of M12X1.25 And Wheels With Min. Hole Clearance of 21 MM Utilize 60 Degree Tuner Style Seat Setting Cast Steel Lug Nut Body With Aluminum Spin Washer - Light Weight, Durable And Prevent Digging Into Aluminum Wheels. Great Appearance Accessory Upgrade For Any Aftermarket Custom Wheels 48 MM Overall Length Lug Nut Body That Will Work With OE Length Or Extended Length Wheel Studs Not Recommended With Factory Wheels. No Installation Instructions; Install By Experienced Professionals Recommended Godspeed Project's steel lug nuts with spin washer are a great accessory for your custom / aftermarket wheels. Cast steel alloy lug nuts are light weight and durable. The aluminum spin washer prevents the lug nuts from digging into the wheel and cause damages to your custom / aftermarket wheels.. Cast Steel Lug Nut Body - Light Weight And Durable Aluminum Spin Washer - Prevent Lug Nuts Digging Into Aluminum Wheel 21MM Diameter Lug Nut Body - Fits Most Aftermarket Wheel Lug Nut Holes FREE Thin Socket Included - Can Be Use With 3/4 and 13/16 Hex Socket Pack of 20 Works with 4 Lug or 5 Lug Wheels **NOT RECOMMENDED FOR FACTORY WHEELS