The backset measurement is the distance from the centre of the keyhole to the leading edge of the lock.
Upvc door lock sizes.
How to measure the size of the euro cylinder lock barrel when in the door.
Now you have the cylinder in your hand note down the below measurements.
The screw is located level with the cylinder itself.
Measure from the centre of the screw hole x to the edge of the handle backplate on the outside o and round up the size to the next 5mm increment i e.
This will ensure the euro cylinder protrudes from the backplate of the handle try to keep it as close to the backplate as possible.
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Euro cylinders are now one of the most common types of locks fitted to modern.
A euro cylinder lock is commonly fitted to upvc composite doors and is used with multi point locking systems and are also fitted to some mortice deadlocks and sashlocks on timber or aluminium doors.
Turn the key slightly and slowly slide the cylinder out.
Type of front door lock back door lock sometimes internal doors.
As the two key sizes for door handle selection are the pz and screw centre fixings our range offers a variety on both with options for handles that have 92mm through to 68mm pz or screw fixings from 122mm to 240mm we have a range of handles that can suit your requirements.
The most common sizes here are 44mm on a 64mm 2 5 lock case and 56mm on a 76mm 3 lock case.
This is very important when replacing locks because you don t want to have to drill new holes if you can help it.