Baldwin Baldwin Contemporary Double Cylinder Deadbolt for 1-5/8" Bore Hole

Contemporary Style Double Cylinder DeadboltDouble Cylinder: A double cylinder lock is keyed on both sides of the door and is only locked and unlocked via a key. Often times they are used on doors where glass is near the door that could be easily broken and the thumbturn on a standard single cylinder lock would be accessible. Note: Some images of this product may be of single cylinder version of the lock with a thumbturn on the interior rather than a keyed cylinder.Caution: Double Cylinder locks can pose ...