My three Sunfish halyard cleats are bronze, and I don't think you'll have any difficulty with galvanic corrosion using stainless hardware.I gather from what I've read that the fittings are bronze. Stainless fasteners are what I purchased but I want to get members' input on the likelihood of corrosion and how frequently I should replace them. But I thought some experience might be helpful to lean on. I am sailing the boat in fresh water only.
Thanks
Then the previous owner of my Sunfish got cheated!Bow handles are chrome plated bronze.
A 1972-year Sunfish is "on the cusp" of having the newly-required US serial number embossed on the upper right transom; however, on the 1972 Grew (Canada) Sunfish, your manufacturer's serial number may be elsewhere. 'Curious as to how many digits, as well...Hello all, I recently completed a successful mast step mix (I'll post some pics of the process soon) on my 1972 Grew Sunfish. I am taking advantage of the new 6" (port) hole in the deck to replace the screws holding the original cleat and fairlead-pulley to the deck, with bolts/fender washers/locknuts. I gather from what i've read that the fittings are bronze. Stainless fasteners are what I purchased but I want to get members' input on the likelihood of corrosion and how frequently I should replace them. Stainless and bronze appear to be close to each other on the galavnic metal list, where metals further from each other are more likely to corrode. Galvanic series - Wikipedia, the free encyclopedia But, I thought some experience might be helpful to lean on. I am sailing the boat in fresh water only. Thanks
Galvanic erosion raised its ugly head after Hurricane Irma mixed up my hardware collection. The "grain" of the metal can be seen as the "backbone" of the bolt. A penny is included to show scale. Note the corrosion in a loose "galvanized" bolt of 5/16" diameter:Hello all, I recently completed a successful mast step mix (I'll post some pics of the process soon) on my 1972 Grew Sunfish. I am taking advantage of the new 6" (port) hole in the deck to replace the screws holding the original cleat and fairlead-pulley to the deck, with bolts/fender washers/locknuts. I gather from what i've read that the fittings are bronze. Stainless fasteners are what I purchased but I want to get members' input on the likelihood of corrosion and how frequently I should replace them. Stainless and bronze appear to be close to each other on the galavnic metal list, where metals further from each other are more likely to corrode.
Galvanic series - Wikipedia
But, I thought some experience might be helpful to lean on. I am sailing the boat in fresh water only. Thanks