Chrome Upgrade Specialty, Bulge Seat Acorn, Package Quantity: 1, Packaging Type: Bag, Thread Size: M12-1.50, Hex Size: 21 mm, Conical Seat - 60 Deg, Chrome, Open End Design: No, Steel, Thread Handling: Right Hand Thread, Overall Length: 1.382 In., Verify lug nut to wheel mating surface for proper and safe fitment