One nut has an integral washer built into it to make it thicker. You don't need a pic for that unless you have no imagination. It's not rocket science. Look at the stackup of parts and figure out what it takes to make either stud parts thinner or the plate/rubber washer thicker. The integral washer nut goes on to hold the top spring plate down on strut/spring assy, the self locker with nyloc is the very top one, it holds down the top plate under the hood, the plate that sticks up in space loose. Whole idea is to pull the rubber cone of top mount up deeper and harder into the shock tower. Not TOO deep, consider that too much loading there will shell the top mount bearing. You only want enough to remove the play (airspace) in top plate.
Pictures comparing nuts are useless as once you have the looseness you are in no man's land and you must come up with something different to match your individual situation. Stock parts are probably not going to do it.