Mortise Dead Lock SS Face Plate 45 mm Backset Fire Rated Door

Its components include:
Main lock body: This is the core structure of the door lock, containing the latch and lock cylinder mounting position, and is responsible for the opening and closing and locking functions of the door;
Lock body panel: Installed on the side of the door, used to cover the lock body and allow the latch to extend;
Black retaining clip: An accessory used to assist in fixing the lock body or panel;
Screws: Fasteners used to fix the lock body and panel to the door.

Lock Body: This is the core functional component of the lock, made of stamped stainless steel with a rust-proof surface treatment. It contains the bolt, lock cylinder, and other structures. The bolt's extension and retraction are controlled by turning the key, enabling the opening and closing of the door.
Lock Bolt Strike Plate: This accessory needs to be pre-installed in the corresponding position on the door frame. It has a long, slotted opening, providing a precise space for the bolt to extend into, preventing direct collision between the bolt and the door frame, and enhancing the stability of the lock when closed.
Dedicated Key: The exclusive opening tool for the lock cylinder. Its unique design (a petal-shaped handle in the image) facilitates easy handling and application of force, while also reducing the likelihood of unauthorized opening by non-professionals.
Keyhole Cover Plate: A decorative and protective component installed on the outside of the door panel. It has a circular hole, allowing the key to be inserted smoothly while also covering the lock cylinder hole, preventing dust, moisture, and other debris from entering the lock body and extending the lock's lifespan.
Fixing Screws: These are the accompanying hardware used to fix the lock body, strike plate, cover plate, and other components to the door and door frame. They are usually made of stainless steel, ensuring secure installation and rust resistance.

Practical Advantages of Installation and Use:
Concealed Installation Design: The lock body is embedded inside the door, with only the keyhole and cover plate exposed. This preserves the clean appearance of the door and reduces the likelihood of the lock being damaged by external forces;
Complete Component Set: The lock body, strike plate, keys, cover plate, and screws are all included, eliminating the need to purchase additional parts and saving time during installation;
Easy Operation: The specially designed key is ergonomically shaped, making it effortless and smooth to turn. Property management and maintenance personnel can quickly learn to use it without complex training.
Safety and Protection Advantages:
The exclusive compatibility between the lock cylinder and key reduces the risk of unauthorized access, ensuring the safety of pipes, wiring, and other facilities;
The keyhole cover plate effectively protects the lock cylinder from dust, moisture, and insects, slowing down wear and tear and extending the lifespan of the lock.