I noticed slight indentations into the fuel tank made by the two Body panels screws that attach the left and right lower side panels .
These two ( photo copied from the tech library)
I measured all the T25 screws that I had removed from the left and right upper and lower panels and found 3 different lengths 16mm, 14mm, 12mm.
the two 12mm fit the storage box lid hinges and the two 14mm fit the panel in the above photo.
I hadn't realized there were 3 different sizes and probably put in the 16mm
I don't think the extra 2mm would be enough to rub all the way through the tank but just wanted to make everyone aware that there are 3 size screws not 2