The Yale British Standard 5 Lever Mortice Deadlock 64MM in Chrome is a high-quality and secure locking mechanism designed specifically for front entrance doors. With a sturdy construction and easy-to-install fixings supplied, this deadlock offers peace of mind for your home or business premises. The sleek chrome finish adds a touch of style while ensuring maximum protection against intruders. Trust in the Yale brand for reliable security solutions that meet British standards for safety and durability. Opened but never used