rusted

Hello everyone, I have posted on these forum a couple of times. I am a very new sailboat owner and I am trying to learn as much as I can, so please forgive any ignorance about this topic I have. I'm seeking some advice regarding the cast iron keel of my 1984 Hunter 31 Sailboat. I noticed some...

I have a 94' Hunter 19 galvanized trailer full of rusted bolts and I want to replace them all. What type or grade should I replace them with? (I want to replace them with stainless steel, but I am unsure they have the sheer strength, specially the bolts that hold metal that the bunk rest on) I...