A tubular latch is a type of door latch commonly used in residential and commercial settings to secure doors. It is named for its tubular shape and is designed to fit into a bore hole in the door, working in conjunction with door handles or knobs to keep the door closed.
The key component of a tubular latch is a cylindrical mechanism that houses a spring-loaded latch bolt. This bolt extends into the door jamb or strike plate when the door is closed, holding it securely in place. The latch is typically operated by turning the door handle or knob, causing the bolt to retract and allowing the door to open.