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How to identify your Cylinder Nightlatch lock
- Look at the lock and see if you can find a manufacturers name, note: sometimes the outside cylinder can be different from the actual back lock.
- From outside measure from the edge of the door to the centre of the cylinder (where the key goes in), this is called the backset.
- Some of our pictures have the case sizes on, the width and length, so you can also measure this.
- Look through our "Locks>Rim Locks>Rim cylinder nightlatch" section or just click the following link http://www.lockmonster.co.uk/cat/rim-cylinder-night-latches.html
