Originally Posted by OldCoot
I replaced all the rivets with Gr 8 bolts and nyloc nuts. Stainless will not rust, but they are still soft.
X2. Depending on the grade of stainless steel used, they will be either too soft or too brittle. Not what you want to use for steps that will be constantly bearing weight.
Use either grade 5 (good) or grade 8 (best), and you'll never have another problem.