Door Cylinder

The cylinder is the locking mechanism of an entry door set. It may be integrated with a the deadbolt of a mortise lock or mounted independently as part of a separate deadbolt.One can secure the door from inside, as well as exit the house without a key, making this the most popular option.

Door Cylinder
Door Cylinder

CY -2C

Both side key.

CY 1C

One side knob

CY H