Hi all. So I'm doing a frame out rebuild brought about by some sprocket bolts that broke and worked there way out as they were spinning. Needless to say they chewed a few troughs in the bottom of the hull. I'm plastic welding the holes but can't remember what size rivets held the skid plates on. Does anyone know if they are specific waterproof rivets. Started this project a few years ago but got side tracked. Thanks for any help. Mike Duggan