There are two types.
Thumb turn door lock types.
Entry can be gained by entering a numeric code on the programmable keypad without the need for a key.
The box is usually a small squarish hole designed to fit the bolt.
Types of door locks.
Some privacy door knobs with button locks have a pin hole on the outside knob and a generic key that opens the lock.
Most bolts are similar in size making the box a similar size that can fit most locks in the home.
Electronic door locks use an electronic keypad instead of a key.
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Single cylinder deadbolts require a key to unlock from the outside but unlock with a small knob or thumb turn on the inside.
Some knob and lever sets include deadbolts.
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Other types of door knobs.
These types of door knobs are typically used in bathrooms bedrooms and other rooms that call for privacy but don t need keyed locks.
For use in combination with a door knob lever lock.
Provide greater control over access to your home.
Die cast thumb turn latch with cam offset cam 1 125 inches long.
The box is the part of the door frame where the bolt latches.
You can use different kinds of door locks for a variety of purposes.
However if it is multiple tenancies then the tenant is not renting the use of the entire house but the room so it should have a lock.
A non tested night latch can be used for access but it must be supported with a tested lock so you would have two locks on the door.
Deadbolt locks create a second locking point for your door when paired with a locking knob or lever giving you an additional measure of security.
The best lock for a wooden door is a lock that meets the requirement of bs3621 the type of lock fitted can be a night latch mortice deadlock or mortice sash lock.
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