One post on mounting plate broken
One of the round posts where screw comes in from the side is broken (please see the pciture). I think this is the mounting plate which attaches to the handle with two screws. Please let me know what is the new part number that I need.
The plate with the latch is attached to the door from inside where the broken posts are inserted and screwed in from the side.
Thanks for posting. I am afraid this is the base of the handle that pull connects to, rather than the actual mounting plate like our 82-108. Unfortunately, this part is not sold separately, and you will need to replace your handle set. See our 82-080, or its keyed variant, the 82-081. I should also note that this kind of damage suggests that your patio door is not sliding smoothly, which is a sign that your track and rollers should be inspected. They may need to be cleaned, or even outright replaced. We can help you do this, if you so choose to. Just let us know. Sorry again that we don't have another alternative besides replacing the handle set!