A tubular deadbolt is a type of door lock that provides enhanced security and is commonly used in residential and commercial settings. It is named for its cylindrical or tubular shape and is designed to fit into a bore hole in the door.
The tubular deadbolt consists of a bolt that extends into the door frame, securing the door in place when locked. This type of deadbolt is typically operated with a key from the outside and a thumbturn from the inside. The bolt itself is usually made of solid steel, providing strength and resistance against forced entry.