I'd be worried that the screws would rub on my fuel tank and cause it to leak. I think that's why they were installed upside down.I just went thru the same thing. I had anti freeze on the floor right under the engine.
Checked the hoses that were easy to get to first.
I pulled the tank and found the leak at the 'Y' where both radiators connect. Honda had the screws on the clamps UNDER the hoses.
Two of the clamps were loose. Loosened all three and then spun them around until the clamp screws were on top.
About 2 1/2 hours work.