Callan Deadbolt CollectionCallan Single Cylinder Deadbolt in Antique Brass by Delaney Hardware

Single Deadbolt Function- Single cylinder deadbolt operates with a key on the exterior and a thumbturn on the interior (For use on exterior doors where additional security is needed, pair with a keyed entry for two points of locking)

Double Deadbolt Function- Double cylinder deadbolt operates with a key on the exterior and interior (For use on exterior doors with glass panes or gates where additional security is needed)

Specifications

Length: 2.5625"

Projection: 2 3/8"

Mounting Hardware: Combination screws that suit both wood or metal door mounting