I would certainly treat the idea of stainless bolts with great care to make sure that both strength and corrosion factors are correctly addressed. The transatlantic yacht would certainly be the area to get ideas from. The strength factor was already well discussed here. The corrosion issue can be very important with stainless steel since under the right conditions it will corrode very quickly. While carbon steels tend to corrode over, stainless, when it corrodes, is vulnerable to local attack which occurs quickly and deeply, rapidly weakening the bolt. The circumstances which tend to lead to this are generally galvanic effects due to dissimilar metals and the presence of salt water (salting of roads in cold countries, or on the coast) in crevices, and stress.
So I am saying get the best advice and the most appropriate materials according to the level of loading, and the material which the bolt is to mate with.
Other problems can be sacrificial corrosion of the bush due to galvanic action, and where stainless bushes are used, galling.
I am not a metallurgist, but work closely with one, we see all these problems with stainless bolting and other components in pumps. Experience with all these issues in the yachts would make this area the best to get ideas from, but as Trevor said, I wouldn't do it, and as Howard said "itelkillya" if you get it wrong.
image from corrosion.com
regards
Dave