Then remove each side s door knob by pulling them away from the door.
How to change security door lock.
Remove the two screws from the latch assembly on the side of the door.
You may also need to use a wire tool or a paper clip.
If your new lock is the same brand and model as the old one you may be able to keep your existing latch plate and strike plate.
Check the back part to find the screws that are holding on the back cover.
Buy a grade 2 or grade 1 door locks rekey the locks you ve bought to match your existing house key make sure your door does not need a lock extension kit remove the old lock replace the lock latch install the new lock body check for proper lock alignment.
Most electronic locks come with two screws that you need to remove from the inner part of the door.
Do not skip this last step.
Turn over the lock so its keypad faces downward.
Remove the screws from the old lock on the inside of the door.
Remove the latch assembly doorknob.
First remove the lock from your door following the manufacturer s directions.