I believe the black part is the hard part. Plenty of regular stainless (pretty sure they are 8-32 x 5/8", but check the Becker database TBS) out there - but I haven't seen black stainless, though I'd bet it was available if you started digging around the interwebs. Good luck!
Edit: There was another thread (or maybe a series of posts) about this same thing sometime in the last year or two, and I don't believe they were able to find black SS. There were some ideas on blackening regular SS, though. Might be an easier way to get to your end goal.