The Yale PM320 3 Lever mortice sashlocks offer a standard level of security and are suitable for use on internal timber doors. The deadbolt is locked or unlocked by key from either side.
These sashlocks also have a 13mm anti-saw deadbolt, and has been designed for use with door furniture.
A deadlock has a single deadbolt which is locked or unlocked and locked by means of a key from either side, whereas, a sashlock has both a deadbolt and a latch which is operated from either side by a lever handles.
The security level of mortice deadlocks or sashlocks ranges from 2-5 levers. The higher the number of levers the more secure the lock is.
Finish: Polished Brass
Case Size: 79mm x 101mm (3 in)
Backset: 58mm This is the measurement from the edge of the door to the centre of the keyhole.
Centre: 57mm This is the measurement from the centre of the follower, which operates the handles, to the centre of the keyhole. In the UK this is commonly 57mm.
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