1Part Number: According to the original factory specifications, M12x50 wheel lug nut reference OE number is C2C3529 2Applicable Model: Wheel lug nut, replacement for Jaguar XJ / XK / XF / SType / XType, please see the detail specification to know more models. 3Threaded Fastener: Wheel nut is used to fix the wheel hub shells of automobile tires. They are wellmanufactured, suitable for most models, and have strong compatibility. 4Precision Manufacturing: Precision engineered threads allow for better engagement with your vehicle's wheel studs, while the load bearing capabilities meet or exceed OEM load standards. 5Perfect Fit: Anticracking off and make it aesthetically pleasing while ensuring safe driving. Our products have undergone extensive onvehicle testing to ensure proper fit and longlasting performance.