Making old nuts, bolts and clips new again

I do this a couple different ways.
I have soaked rusty parts in miratic acid and washed really well with baking soda and water, then coated. or theres a chemical you can spray or soak the part(s) in right after the bath called RUSTBAN. that keeps them from flash rusting as they dry. works awesome.
second method is to sand blast. I took a 2 ft. chunk of 2x6 and drilled a bunch of different holes in it to hold the bolts. gotta flip them to get the ends, (a pain) but I also use that same piece of wood to hold the bolts when I coat them.