Insert the exterior part of the lock into the door by feeding the long metal piece through the opening in the center of the bolt.
How to replace a security screen door lock.
2 pull the inner and outer sides.
Learn how to replace or change the security door lock under three minutes.
Open the screen door to access both sides of the lock body.
To do this when door is open you will need to press the deadlatching pin which sits above the main latch next you will need to undo the cylinder retaining screw then insert and turn key to lock position.
Loosen and remove the machine bolts from the inner half of the body with a screwdriver or a screw gun.