Hi i am Stefos and i write from East Aegean Greece (excuse my bad english). I ordered to a boatbuilder a 9meter wooden boat. We are going to use pine tree (pinus brutia). The fastening material i can find in my island shops is galvanised nails or stainless steel nails and screws. Most boats here use galvanised nails but after 15 years in the water they rust so i don t want to use them. I read in other threads that stainless is not suitable for under water use but i don t know if that means is worse than galvanised nails. The question is should i use stainless nails or should i look for other material?