Cannot find Atrium lock mechanism PM520A

Question

Has the part number PM520A (part of a Atrium Sliding Glass Door locking mechanism)been replaced by something else.  I am missing this part and I can?t seem to get the part number to come up anywhere!  Can anyone help locate this part or part number please?

Tom · Accepted Answer

I'm afraid I'm not familiar with that number. I see you were looking at our 82-265. Is this a mortise lock? You say it's missing, which will complicate things, but we can still help. I would like a photo of the hole where it installed. I would also like the measurement of the hole. Specifically, I'd like to know the height of the main oval hole and then I'd also like the space between the two smaller installation screw holes, measured from center-to-center.