Help protect your vehicle's wheels from theft with GM Accessories Locking Lug Nuts. The locking lug nuts are GM-recommended products for your GM vehicle. The set includes 1 key and 4 decorative locking lug nuts, with an M14x1.5x49.9 thread size, coarse thread type, tapered seat type, and internal lock design pattern. Components are performance grade, made of steel, have a chrome finish with hex free coating, and are for wheels with exposed lugs, without a need to retain a wheel cap or cover. This GM accessory can help to personalize, customize, or optimize the capability of your vehicle for your lifestyle and use.