Tom from SWISCO responded:
March 17, 2020
Hello! Looks like your outer handle has a hole punch for a key plug, so you should be able to install our 82-310. I'm confident that this will be compatible with your mortise. However, keep in mind that the position of your hole punch is centered. You need to make sure this aligns with the slot in the mortise that accepts the key lock. If they don't align, we'll need to come up with another solution. |