general view

doorknob

Knob in the form of a lever used only for latch bolt locks.

rose

Decorative plaque with an opening in the center allowing the doorknob to turn.

latch bolt

Part whose beveled end is activated by a doorknob; it catches automatically in a strike plate when the door is closed.

faceplate

Thin plate fastened to the edge of the door with an opening through which the bolt passes.

escutcheon

Thin plate fastened to the door with openings for the lock’s rose and ring.

dead bolt

Part whose end is inserted into a strike plate to lock the door when activated by a key.

lock

Device mounted on the door allowing it to lock by using a key.