Hand thread the screws then tighten them using a screwdriver or power drill.
How to install security door lock.
Now without touching the door handles turn the internal snib away from the 12 o clock position to the left or the right based on your door lock side choice.
This is a quick video to show you how to replace a sliding screen door lock.
Snap on the decorative outer plate.
Attach both the exterior and interior backing plate to the door.
Return the snip to the 12 o clock position and repeat the same process using the key.
Attach the interior part of the deadbolt lock by inserting the two provided long screws through the interior plate the two screw holes in the bolt and into the exterior side of the lock.
Step 4 install handles and locks if your door already comes with the handles and locks attached you can proceed to the next step first determine the side the handles and locks will go on.
How to install a security door easy diy.
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