225 Tournament scupper flap screw corroded

[Rocketman]

I've a GW 2007 Tournament 225. the scupper flaps are gone, and I see the replacement kits which are straightforward. However the screws holding them in are stripped/corroded and I dont want to bite into the threads. Anyone have experience removing these screws without damaging threads? picture enclosed. I did try the bit for reversing stripped head screws, but it just literlly drilled it out

 

[seasick]

Can be very difficult to remove but you may have luck by removing the piece of the flap that is still there, spray a penetrant several times on the screw and try a vicegrip on the screw. You may be able to use a dremel and a cutting disk to clean up or make a new slot for a screwdriver. The screw may break off in which case you will have to carefully drill the screw out.