They look good, but with that sharp end sticking out, you would need to tape them to keep from catching lines, sails, bits of flesh, etc. My choice would be what they call a circle cotter, since it is much less likely to catch things. Just another opinion. _______Grant.
All I know about them, I read on the posted link. Just found them using google. It looks like they have ss version. I'd be using them on the pin holding my mast up and the pin holding my rudder on. Just a 15 foot sailing dinghy.