Garrett, Now I am saying this as a question not a critique, Why don’t you use stainless screws? I found exterior 316 stainless marine grade screws #10 X 3″ at 350 count for $116.95 dollars and shipping is free, now I have no idea how many you need, but it seems to me with my limited knowledge concerning anything to do with salt water, that stainless is a permanent use item and would save you any loss of sleep, Like forever. Like I said I am just asking, not a criticism. The web sight where I found them is at Eagle claw fasteners in powell Tennessee. Love the show, thanks. Mark M.
Hey Mark, there’s a couple reasons I chose not to go with stainless. The first is the same reason I didn’t go with bronze or copper which is I don’t want to mix dissimilar fastener metals below the waterline. Especially since that would make the sheathing fasteners (the non structural/sacrificial ones) the more noble metal than my structural planking fasteners therefore putting them at risk of electrolysis. If this was the other way around and my structural planking fasteners were the more noble metal I would consider it. The next reason is I tend to avoid stainless steel especially under the waterline, or anywhere devoid of oxygen because unlike regular steel stainless steel corrodes in an oxygen deprived environment, and while 316 stainless is very corrosion resistant it is typically avoided for underwater hull fasteners in the wooden boat world. I personally have pulled out hundreds if not thousands of stainless fasteners over the years, and throughout different boat restorations that had suffered so much from crevice corrosion that there was very little of it left even in cases where the head (the part exposed to oxygen) looks perfect. G
Salt & Tar 
Garrett, Now I am saying this as a question not a critique, Why don’t you use stainless screws? I found exterior 316 stainless marine grade screws #10 X 3″ at 350 count for $116.95 dollars and shipping is free, now I have no idea how many you need, but it seems to me with my limited knowledge concerning anything to do with salt water, that stainless is a permanent use item and would save you any loss of sleep, Like forever. Like I said I am just asking, not a criticism. The web sight where I found them is at Eagle claw fasteners in powell Tennessee. Love the show, thanks. Mark M.
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Hey Mark, there’s a couple reasons I chose not to go with stainless. The first is the same reason I didn’t go with bronze or copper which is I don’t want to mix dissimilar fastener metals below the waterline. Especially since that would make the sheathing fasteners (the non structural/sacrificial ones) the more noble metal than my structural planking fasteners therefore putting them at risk of electrolysis. If this was the other way around and my structural planking fasteners were the more noble metal I would consider it. The next reason is I tend to avoid stainless steel especially under the waterline, or anywhere devoid of oxygen because unlike regular steel stainless steel corrodes in an oxygen deprived environment, and while 316 stainless is very corrosion resistant it is typically avoided for underwater hull fasteners in the wooden boat world. I personally have pulled out hundreds if not thousands of stainless fasteners over the years, and throughout different boat restorations that had suffered so much from crevice corrosion that there was very little of it left even in cases where the head (the part exposed to oxygen) looks perfect. G
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