A stick that moves around a fixed point to operate a machine or move a heavy object.
Lever
A device that consists of a metal bar that fits into a hole used to keep a door or a gate closed.
Latch
A piece of bent metal that can be pressed into a smaller space but then returns into its usual shape.
Spring
A device that prevents something, for example a door, from being opened.
Lock
A curved device used for catching or holding things.
Hook
A small metal lock with a U-shaped bent bar.
Padlock
A piece of metal that fastens a door or a box and that it is used with a padlock.
Hasp
A part of an object used to grip.
Handle
A piece of metal that fastens or joints the edge of a door, window, lid, etc.
Hinge
A small metal device that is used to fasten something.
Clasp
A metal bar on a door or window that slides across to lock it closed.
Bolt
A round handle on a door or electronic equipment.
Knob
It is a mechanical device which doesn't need any key, just push or slide it in its place to close or release to open the door.
Aldrop
A metal handle that must be lifted to knock a door or open a closed container.
Ring pull
A strong type of lock that needs a key or a handle to open it.
Deadbolt
A cover on a container that can be easily lifted up or removed.
Lid
