Setback

Without photos of your old tilt latches I can't be certain what you need. However, when you say you need a 3/8" set back on the tilt catches. I believe you might have a set which we no longer carry and I believe are no longer available. Now, look at the related photos on the web site of the 26-243. You will see by viewing the underside of the latch that the "nose catch" lines up with the bottom base. Take a look at the surface mounted tilt latches like the 26-228 and the 26-435 to see if you could use one of these or any that we carry on the web site. If you can send us some photos of one of the tilt latches that are not broken, preferably out of the window, we'll see if we can find something better.