Exterior doors often use more than one locking component. Two common examples are knob or lever locks and deadbolts.
Knob and Lever Locks
These locks are integrated into the handle hardware and are convenient for everyday use.
Deadbolts
A deadbolt uses a solid bolt that extends into the door frame.
Why Many Doors Use Both
Using a properly installed deadbolt together with quality door hardware can provide an additional layer of security.




