Product review (1 stars): Useless
I used these to mount my dishwasher to my granite countertop. The adhesive that comes with the brackets just can't hold to the granite.  I even had sanded and cleaned the mounting surface before installing.  Finally, I ended up using epoxy to attach the brackets to the granite.  It was just awkward to glue this to the granite since the brackets were too small.  I had a hard time find a clamp that would clamp this to the surface.  Eventually, I tossed these brackets and just used liquid nails to attach a thin piece of wood trip under the countertop and screw the mounting tabs of the dishwasher to it.