The lock body the part installed inside the mortise cut out in the door.
What is a mortice lock backset.
While some lock locations are fairly standard they can vary based on hardware design manufacturer and region.
What is meant by backset.
Armored front provides maximum strength and protection against tampering.
The term backset is used to describe the location of a lock in relation to the edge of a door.
Please see the demonstration below.
Vital interior working parts are made of solid hot forged brass or steel for a lifetime of trouble free operation.
In the united states there are two common backsets for residential door locks.
A mortise lock is a lock that requires a pocket the mortise to be cut into the edge of the door or piece of furniture into which the lock is to be fitted.
They are commonly used in deadbolt door locks and touch bars with alarms.
The backset is the distance from the edge of the door to the center of the 2 1 8 inch bore hole.
To do this measure the backset distance of your old lock.
The backset is measured by placing a tape measure or ruler from the center of the keyhole to the forend of the mortice lock.
The most common sizes here are 44mm and 56mm give or take a few millimetres.
Choose them if you need lock cylinders that each open with a different key.
Pack your locks with a 2 3 8 inch or 2 3 4 inch latch depending on which backset you specify.
The width of a mortice lock is measure by measuring the distance between the edge of the case and the edge of the forend.
In most parts of the world mortise locks are found on older buildings constructed before the advent of bored cylindrical locks but they have recently become more common in commercial and upmarket residential construction in the united states.
2 3 8 inches and 2 3 4 inches.
They are widely used in domestic properties of all ages in europe.
The parts included in the typical mortise lock installation are.
If you intend to use new locks or latches on an old door replacing your old ones you will need to make sure the new one fits into the hole in the door.
A mortise lock is one that requires a pocket the mortise to be cut into the door where the lock is to be fitted and is common in commercial construction.
This dimension is used for all types of locking devices including cylindrical and mortise locks as well as deadbolts and handle sets.
Pry resistant lock cylinders for mortise mount locks designed to withstand vandalism better than other lock cylinders these are for use in locks that are mortise mounted into a cutout in the door.
The backset is an important measurement as it specifies the distance from the face of the lock to the centre of the keyhole.
