Fitting sizes should be printed on the instructions that come with the lock.
How to fit a cylinder door lock.
A cylinder lock has a latch which automatically engages into a keep when the door is closed.
With a thin door like this the recess for a mortise lock would weaken the door structure too much.
Remove the old cylinder from your door.
Next is to mark the lock body.
Select a lock with the same setback.
Drill the cylinder hole by using an auger or expanding drill bit.
Many new lock sets allow you to adjust the latch to either distance.
You ll then be able to screw the cylinder to the mounting plate.
Using the body of the lock as a template mark the.
If it is not possible to use a mortise lock you can fit a rim lock which is mounted on the surface of the door.
Watch our step by step video showing how to change a euro lock cyliner with expert advice and top tips to help you complete the job with confidence.
Put it over the mounting plate so that you can pencil around the overhang.
And if you want extra added security consider electronic door locks or even smart locks.
This may be the case for example with a door that is less than 40 mm thick.
The handedness of most locksets can be changed by using an included tool.
To avoid splintering as the drill passes through the thickness of the door to the other side hold a block of wood on the opposite side of the door to allow the bit to drill into it on the other side.
Unscrew the main screw red dot place the key inside the cylinder and turn it to the left or right to make sure that the carrier is parallel with the cylinder.
You ll now need to chisel out a recess for the lock to.
Open front door to reveal the face of the lock.
A new cylinder lock will usually come with fitting instructions and a template for marking the door but if you want to know how to go about it simply follow these steps.
Make sure you use the correct size.
Measure the size of the old cylinder.
The cylinder should be inserted through the face plate and the back plate mounted on to the back of the door.