Ultimate Lock

Ultimate Lock MLS 4000 - Security lock Product Description (NEW LOWER PRICING) “The Ultimate Lock” MLS-4000 is a steel barrier placed across the inside of a front or back entrance door and is connected (piggybacked) and operated with the existing keylock and deadbolt hardware, or one that is added new. Additional high-strength components and fasteners are provided to connect the steel beams to the internal building structure defining the entrance, not just the door jamb trim, thereby increasing the force to physically kick a door open well beyond the force capable from the heaviest or strongest criminal or angry spouse.