Description: Wheel Locks, fits lug bolts, 17 mm hex head, 46 mm overall length, 21 mm thread length. For aluminum wheels only. Each kit includes four locking lug nuts/bolt and an exclusive Mopar key created to deter wheel and tire theft. Each key is exclusive to the kit it comes in, it will not work for any other kits. Save the McGard card the kits comes with in order to order another key. Picture is for reference only.