Originally Posted by
lord_athlon
Most stainless bolts have a lower tensile strength. That is typically why.
Where strength isn't important, or stainless steel is adequate, use 'em. Water bottle bolts don't snap off. Rack mounts, I've never had one break, but I'd consider a chromed, high strength bolt if I were doing loaded touring. Stem and seat post bolts, high strength steel.
I have an organizer full of M4, 5, and 6 bolts of various sizes.
If you're really concerned about strength, there are CrMo cranks, stems, and seatposts out there as well.