Lock for sliding door.

I'm a little bit confused here. The door in your first post is a very different door than what you show in your second post. The second post has a typical Andersen brand door that uses our 82-037, but the first post shows a generic 82-227, which is used by about a million different brands.

Which door exactly needs the key lock? If it's the Andersen door then you can use the 82-319. However if you need a key lock for the first door then I need to see the handle set you had installed there. That does not use Andersen hardware so it will look different from the other parts you've shown me.

Thanks for confirming. In that case, we have a problem. The first batch of door handle photos you showed me are not designed to work on that door. Those are Andersen brand handles and can only install on Andersen brand doors, which that door is absolutely not, as previously explained. Are you 100% positive that those handles go with that door?

If they were, then someone installed the wrong parts, which means I don't know what will work. The Andersen key lock that usually works with those handles won't work on that door in any way, shape, or form. It's just not compatible with the existing mortise. Can you triple check just to be certain those are the right handles, and that you aren't mixing by mistake? Would it be possible to see a photo of the hole pattern on the door that the handles use to install?

As for the Andersen brand door in your second batch of photos, then the 82-319 should work perfectly fine.