mortise lock

Lock fitted into a door whose dead bolt provides greater security; it is used especially on exterior doors.

strike plate

Metal part fixed to the door frame and fitted with an opening to a cavity into which the bolt is inserted.

rotor

Rotating part of a lock mechanism that a unique key can turn in order to draw the bolt.

key

Metal part whose unique grooves activate the lock.

faceplate

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

dead bolt

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

ring

Protruding cylindrical part on the door into which the key is inserted.

keyway

Orifice complementing the shape of the key and through which the rotor is fitted.

cylinder case

Hollow part of a lock into which the locking mechanism is fitted.

cotter pin

Piece of metal that, by aligning itself to the key’s grooves under pressure from the spring, enables the rotor to turn.

spring

Elastic piece of metal that, by pressing against the cotter pin, prevents the rotor from turning if the key’s grooves do not match.

stator

Fixed part of the lock mechanism interacting with the grooves in the key to make the rotor turn.

cylinder

Part that contains the lock mechanism.