Heck, I don't buy regular bolts anymore.
Anything I work on is going to have stainless and if heavy torque is required, grade 8.
Nothing worse than having to work on something and then having to fight rusty bolts from the get-go.
Just got through replacing my camper's catches and many other screws with stainless including the inside of the icebox screws. lol Still need to replace the jack screws on each corner though.