a locking system for a mold includes a first mold half , a second mold half , and a lock assembly that is coupled to one of the mold halves . the lock assembly includes a wear plate , that is disposed between the first mold half and the second mold half , and an adjustment element , which is disposed between the wear plate and one of the mold halves . the lock assembly also includes a wear plate locking fastener , that locks the position of the wear plate , and an adjustment fastener , which is separate therefrom and adjusts the position of the wear plate .