A rotating piece attached to the end of a mortise cylinder plug to engage the locking mechanism.
A heavy cane-shaped bolt with the top bent at right angles used on the bottom of doors.
The box containing the lock mechanism.
A spring bolt actuated by a chain attached to the spring bolt for application at the top of the door.
The different bittings or tumbler arrangements in a series of locks.
A plate or ring used under the head of a cylinder.
Lock or latch whose parts are intended for installation in holes bored in a door.