I ordered some chequer plating for behind the fuel filler cap at great expense (well about £5!). Now, I went to fit it thinking it would be a 5 minute job... There are 4 (rusty) screws holding on the back of the fuel filler pipe. My plan was to remove these, drill 4 holes in the chequer plate and refit using stainless screws. At least that was the plan till I tried undoing the screws... the nuts are Kn*ckered on the back and the heads ground out as soon as I started to turn. What's the advice out there? Should I carry on in my quest for a perfect job, or just glue the chequer plating over the top of the screws and bodge it completely? How best to remove the screws etc