If you only fit one lock go for an automatically dead locking night latch made to bs3621.
Fitting a front door lock.
The difference between a rim lock and a mortice lock is that a rim lock is fitted on the surface of the door whilst a mortice lock is fitted in the door edge.
As a rule the more levers pins or discs that a lock has the harder it will be to pick.
To install this lock see section 4 below.
However if you only fit one lock make it an automatically dead locking night latch.
Where the door is self closing the latch has an angled or rounded edge and is sprung so that it automatically locks when the door is closed.
Fitting a front door rim lock fitting a rim lock the yale type lock on your front door is fairly straight forward.
Interior doors are usually fitted with a mortise lock with a latch operated by the door handle or knob.
The key to success is getting the hole for the cylinder in the right position.
When possible fit two locks on your front door both to bs3621 standard.
Position a mortice deadlock about halfway up the door and fit a night latch on your front door one third of the way down.
Expert tip fitting a night latch that is british standard approved will improve the security of your door.