Please let me know which product I need from you guys to install a key lock entry on my sliding patio door
Tom from SWISCO responded:
December 14, 2016
Assuming the pictured hardware is all working fine, you may only need our 82-315 key lock. I recommend watching the video below to see how it installs on a patio door handle set just like yours.
A professional from CA says:
December 14, 2016
While you are at it, see if your lock can be flipped. They are more secure when pointing up. If there is already a hole it should be easy. Once you drill the hole in the outside handle, you won't have a choice.