Well. Yes and no. I think finding stainless fasteners that will replace the stock components is possible, but very hard and/or expensive.
Galling can be avoided by using liberal (just for gtluke /ubbthreads/images/graemlins/tongue.gif) amounts of quality anti-seize.
The bending can be avoided by using a better grade of stainless steel. This is where it gets expensive. As far as I can tell from a cursory search the only grade 8 (10.9 on our cars) equivalent stainless material is
Bumax 109. They make the nuts and bolts we use. However, just looking at Bumax 88 fasteners on McMaster Carr, I'm guessing the Bumax 109 stuff is even more prohibitively expensive. Only place I found that sells them is an outfit in
New Zealand. However they never address in their documentation how they deal with galling. Again, can be addressed with anti-seize worst case.
If you can find fittings made from
Nitronic 60 you will avoid the galling problem. However, they are only about as strong as grade 5 (8.8 bolts on our cars). I think some folks make these, but I'm not sure.
Overall, I'd leave important stuff up to stock bolts. A nice new stock bolt is zinc plated and should be fairly resistant to corrosion.
Have a ball in non-critical applications while keeping galling in mind. You should be able to use stainless steel bolts in regular steel nuts, or vice-versa, without galling concerns. Example: Valve cover. Even better, places where you will be putting a stainless fastener in plastic.