u/Beginning-Forever731

Hi everyone, I'm building an off the grid small cabin. The build is in coastal alaska (a literal rainforest) and will take a few years, so I'm using 3/4" pressure treated plywood for the subfloor.

I'm having a very difficult time figuring out what screws to use for the subfloor. Stainless steel doesn't sound strong enough. Everything else doesn't sound like it has enough corrosion resistance. I can't fing hot dipped galvanized screws that would be suitable for a floor (flat screw head). At this point I'm considering using hot dipped nails?

Any advice? Thank you in advance!