Seacast for a gast tank cover? 1979 246 CCP

[Blue Agave]

A better option would be to glass aluminum backing plates in place then drill and tap. Then you would not need to remove the cover to remove the cooler seat.

[kaptainkoz]

Thank you Blue,
hmmmm... you got me thinking now. That would work great. I can even use Stainless to prevent any unlike metal electrolosis. My father is a machinist and has access to military grade scraps. Or a simpler route with be a stainless t nut which is how I had it mounted on the tank cover of my 200CCP. Overall it is best to stay away from just screwing something in.