It can be locked or unlocked at any time using.
Door lock spring mechanism.
This is designed for acorn and better bilt doors but can be found on a variety of other door manufacturers.
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If you ever need to replace locks on your doors you ll need to know the individual names for parts their importance for the overall mechanism and how they help the other parts work to lock the door.
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How to fix a doorknob s bolt mechanism.
Turning a doorknob retracts the end of a bolt or latch from an opening in a strike plate on the face of the door jamb allowing the door to open.
Repairing the spring in an old door handle.
The spring is compressed to unlock the bolt and when released it snaps into a locked position.
Let s first look at the parts of a door lock so that you can understand how they work together to create the lock.
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A locking mechanism used with a latch bolt.
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.
Spring bolt lock or night latch.
Like all latches a slam latch is a mechanism to hold a door closed.
Parts of a door lock.
Spring bolt a spring latch is a bolt held in place by a spring clip.
The slam latch derives its name from its ability to slam doors and drawers shut without damaging the latch.
This type of door generally locks automatically when closed.
A slam latch uses a spring and is activated by the shutting or slamming of a door.