External lock for sliding glass patio door

A home owner from Northampton, PA says:
Good evening,
Please find attached a picture of my interior lock. I would like to add an external lock but do not know what parts I need. The measurements are 3 7/8" and 1 3/8" if that helps.
User submitted photos of patio door hardware.
Profile picture of Tom
Tom from SWISCO responded:
Hello and thank you for posting. Your handle set looks a lot like our Patio Door Handle Set, product code 82-035. Take a look at the video beneath the photo for instructions on how to install a key lock like our 82-315.
A home owner from Northampton, PA says:
So does that mean I only need to purchase 82-315? Are there any other items I need?
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Assuming everything else in your pictures is working, you shouldn't need anything else. See the video below for further elucidation.
How to Install a Key Lock on a Patio Door
How to Install a Key Lock on a Patio Door
VIDEO
WATCH >
How to maintain a sliding glass door
How to maintain a sliding glass door
GUIDE
READ >
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