Common Deadbolt Styles & Features
A single cylinder deadbolt utilizes a key on the exterior and a thumb turn on the interior for locking and unlocking the deadbolt.
A double cylinder deadbolt utilizes a key on both the exterior and interior for locking and unlocking the deadbolt, providing an extra measure of security.
Deadbolt thrown by rotating interior turn-piece or exterior keypad, remote control or key. Latch retracted by interior knob/lever or exterior thumb piece.
The one sided deadbolt is operated by a thumb turn on one side with no trim on the other side.