Looks to me...the older design has a nut welded on the back, the screw holds the slide mechanism together, and is not used for mounting. I believe that latch is being held in with the two rubber/plastic "bumpers" and just snaps in. Should be able to carefully able to pry out, from the "away from edge side of the latch. Updated version now has screws. Might need to tap drill for mounting screws. Sliding mechanism being retained in a different fashion. If you don't have ability to contact Isotherm
directly to confirm, I will call my Indel manager friend and confirm or update...
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