Install and secure all 3 screws.
How to install a door slide bolt.
Close the door up until the keep touches the door frame.
Glue this to the door where you want the bolt lining up the front edge of the plywood with the edge of the door.
A typical placement is one or two feet above the knob but it can be lower.
Mark fixings for door keep.
If you need a stronger latch it will require a lot more work.
With the door bolt now fixed firmly to the door the final job is to fix the bolt keep onto the door frame.
Level up the door bolt and then mark drill and screw the top screw hole nearest the door.
To install your security slide bolt lock you must first determine whether your door is inside sliding or outside sliding.
Cut a piece of plywood larger than the size of the bolt.
How much strength do you need the bolt to have.
It will be necessary to drill deep enough to allow full extension of the slide bolt in order to secure the lock.
An outside sliding is a door in which the moving door is on the outside of the house whereas an inside sliding places the moving door on the inside of the house and the fixed one on the outside.
Be sure that the hole is large enough to eliminate any binding of the slide bolt.
Install the barrel bolt at a height that is easily reachable.