New Locking handles from SWISCO do not fit. Can't lock windows!

I see that your mounting plates have two sets of holes. See if you can use the other set of holes to mount the lock so that the rivet will be further away from it. If not, the only other option I can think of is to file the support plate or rivet head a little, just enough to by pass the plate.

Thanks for getting back to us, Dawn. I don't believe your older version locks are available anymore. Sometimes manufacturers make small changes like this over the years. It can make things a little more difficult but there is usually a way around it.

Have you tried mounting your old support plate from the second set of holes? Based on the wear I see on the plate in your picture, you are using the holes that set the plate closer to the lock. Try the second set and see if that fixes your problem.

If not, we do sell the 38-278 multi point support plate, which is meant to work with the 38-058R. It doesn't look very different from yours at first glance, but I haven't heard anything from other customers who've bought them that would imply they don't work together.