High Standard Fire Rated SUS 304 Deadbolt Mortise Fireproof Door Mechanical Lock Body

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.

A single-latch lock cylinder is a core component of door locks, primarily used in locks for interior doors such as those in bedrooms and bathrooms.

Structure is clear:
The main body is a copper lock cylinder (a common, durable, and rust-resistant material);
The grooved metal rod at the bottom is the latch linkage rod (after the lock is inserted, turning the key causes the latch to extend or retract);
It is paired with a computer-controlled copper key (with a more complex tooth pattern, offering higher security than a regular key).

These lock cylinders typically feature a "tail" design (the long rod at the bottom), compatible with most interior door handle locks/mortise locks. They are a common accessory for household door locks, allowing the door to be opened and closed with a key after installation.

High Compatibility: Adapts to the standard lock hole sizes of most interior doors (wooden doors, composite doors), eliminating the need for additional drilling when replacing old locks, saving on modification costs.
Easy Installation: Complete with all necessary accessories (including fixing screws and clips) and a corresponding panel, even beginners can complete the installation following the basic steps.
Durable Structure: The main lock body is made of metal, and the lock tongue and internal components have high wear resistance, minimizing wear and tear from daily opening and closing.
Flexible Adaptation: Supports the installation of standard lock cylinders, and is compatible with subsequent lock cylinder replacements (such as upgrading to a security lock cylinder) without needing to replace the entire lock body.