Some have a button on the inside that you press to lock the door.
Opening door lock both sides with keys.
Double cylinder deadbolts have a keyed cylinder on both sides.
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Door knobs communicating.
Pocket door locks allow locking the door from one or both sides.
Danger of double key locks.
Wooden door you will have a wooden timber door.
When i was a los angeles county deputy sheriff i had the sad observation of seeing a young woman who was killed by smoke inhalation.
That would be a dead lock or dead bolt.
She had left the key in the double key deadbolt but investigation revealed that in her rush to escape the fire by turning the lock she had pinched the key causing it to move.
Usually the user can operate the locking mechanism using a thumbturn or a key.
5 levers the number of levers should be stamped on the faceplate of lock e g 5 lever.
While latch is larger the safer is the pocket door lock.
For use in combination with a door knob lever lock.
Electronic door locks use an electronic keypad instead of a key.
Entry can be gained by entering a numeric code on the programmable keypad without the need for a key.
Installation is similar to other types of locks for doors.
Bump resistant anti pick pins.
Double locking cylinders.
The button unlocks when you turn the interior knob.
Keyed entry door knobs have a lock and key mechanism on both sides for safety and security.
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Open with a key you can open the lock from both sides with a key.
Ball entry door knob keyed on both sides.
After turning the thumbturn or the key the mechanism pushes a latch that inserts into a hole in the door frame.
This is a good option for doors with glass or windows since an intruder can t break into the door even if the glass window is broken.
Lock fitted in door material the lock is fitted into the leading edge of the door not the surface of the door.
Unless it is keyed on both sides i.