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2. Latch - Wikipedia

   en.wikipedia.org/wiki/Latch

   A latch bolt is an extremely common latch type, typically part of a lockset. It is a spring-loaded bolt with an angled edge. It is a spring-loaded bolt with an angled edge. [ 1 ] [ 2 ] When the door is pushed closed, the angled edge of the latch bolt engages with the lip of the strike plate; a spring allows the bolt to retract.

3. Door furniture - Wikipedia

   en.wikipedia.org/wiki/Door_furniture

   An Aldrop is similar, but incorporates a slot through the handle which can engage a hasp for securing the bolt with a lock. Latch bolt – A bolt that has an angled surface that acts as a wedge to push the bolt in while the door is being closed. By the use of a latch bolt, a door can be closed without having to operate the handle.

4. Mortise lock - Wikipedia

   en.wikipedia.org/wiki/Mortise_lock

   This example has two bolts: a sprung latch at the top, and a locking bolt at the bottom. Right: the box keep, installed in the doorjamb. A mortise lock (also spelled mortice lock in British English) is a lock that requires a pocket—the mortise—to be cut into the edge of the door or piece of furniture into which the

5. Padlock - Wikipedia

   en.wikipedia.org/wiki/Padlock

   These locks afforded little protection against forced and surreptitious entry. Contemporary with the smokehouse padlocks and originating in the Slavic areas of Europe, "screw key" padlocks opened with a helical key that was threaded into the keyhole. The key pulled the locking bolt open against a strong spring. Padlocks that offered more key ...

6. Lockset - Wikipedia

   en.wikipedia.org/wiki/Lockset

   Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]

7. Deadbolt - Wikipedia

   en.wikipedia.org/wiki/Deadbolt

   A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. [ 1 ] It is distinct from a spring bolt lock because a deadbolt can only be opened by a key or handle.