How do bolt and latch locks work?

A mortise lock and latch lock is a type of lock commonly used for entrance doors. It consists of two parts: the latch and the bolt.

The latch is a spring-loaded bolt that, when the door is closed, automatically slides into a recess in the door frame. This keeps the door securely closed and prevents it from being opened without further action. The latch is typically activated by pressing the door knob or turning the door handle.

The bolt, on the other hand, is another bolt, usually larger and more robust, that is manually pushed into a recess in the door frame to lock the door. It provides a higher level of security than the latch and is typically operated with a key.

Some of the main features of a mortise lock and latch lock are:

• It offers a good level of security for entrance doors.
• It features an automatic locking function via the latch, which secures the door when closed.
• It requires the use of a key to open and close the bolt for added security.