Protect your rims against theft with the Carpoint locking wheel bolts. These lock bolts can only be removed with the special key provided. The set comes with 4 wheel nut locks and special key. Type A. Size: M12x1,25x26mm Conical. Always check if the wheel bolt locks are the same as the current bolts. An incorrect size of bolt (too short, too long or not the right size) can cause damage.