Tom,
See below for a previous rant of mine. If you repair it as I did be VERY careful. Put a sheet of steel behind the fixing and be absolutely on the center of the screws.
Picture this. A broken rear hi-intensity rear lamp. How to remove? Firstly detach the lens, but where are the body fixings? Oh, through from the inner (fuel tank) side of the rear panel. How in God’s name do they come out? Ah, remove the fuel tank to access two M6 screws, easy. The experts know the answer to that one I bet. Dare I say Avdel again? Of course I did not do the fuel tank thing, but the drilling down the center of the screws was very fraught – one slip and one punctured fuel tank.
All that was required in the first place was appropriate fixings - AVDEL nuts.
Steve B