Restoring nuts and bolts?

Billy, stainless is the way to go.

But if you want them to match your existing powder job, I can help you out with that for a great price. I'd blast everything clean and all the threads will be masked before I shoot it in a matching powder. (Most people use a flat or gloss black on their suspension so let me know if yours is a specialty color; that can be matched too.)

For what it's worth, I shoot all the related hardware at no extra charge if you toss it in the box with your parts.