Looking for a retofit to make this lockable from the outside with a key

A professional from Long Island says:
HI I have a vinly sliding door with a lever lock on the inside and i would like to have it keyed on the outside. Do you have a retofit kit that will work. The screws are Center 4-1/2 Inches heavy apart. Any ideas what i could do would be great. Thanks
User submitted photos of patio door hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Looking at your photos, it appears that you have the 82-035 handle set. If you agree, then the 82-309 is the correct key cylinder set for that handle.

Please read the directions carefully, though. I have installed these in the past and it can be a little tricky. Make sure you drill out the correct three holes in the outside handle. You will need three two for the mounting screws and one hole for the key cylinder itself. It wouldn't be a bad idea to have a locksmith help.
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