Mishimoto MMLG-15-LOCKBK Aluminum Locking Lug Nuts, M12 x 1.5, Black Fits vehicles equipped with M12 x 1.5 wheel studs Material: 7075-T6 Aluminum / Thread Size: M12 x 1.5 / Length: 50mm Extremely lightweight, each weighing only 0.8 oz. / 22.68 g Ultimate tensile strength: 74,00078,000 psi Mishimoto Lifetime Warranty