The main door lock installed in most hdb flats and condominiums in singapore is the mortise lock.
Main door lock set.
Usually the backset measures 2 3 8 inches or 2 3 4 inches.
The photo above shows what you are probably used to seeing.
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This bolt can only be extended or retracted by manipulating the keyway hopefully with the proper key.
This simple set provides the essentials when it comes to keeping your home safe and secure.
The distance between the edge of the door and the center of the lock hole.
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A deadbolt uses a bolt to extend into a bored hole made in the frame of a doorway.
The mortise lock requires a rectangular pocket also known as the mortise to be cut into the door so that the lock can be fitted into it.
Before purchasing a lock measure your door s backset cross bore and thickness to ensure you find the right fit.
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