Anodized aluminum parts in NYC area?


I tried searching google and this forum for “anodized” “aluminum” “NYC” “sale” and combinations of it all but never really got an answer.

Does anyone know where I might be able to physically go and browse/buy Anodized Aluminum bolts for a TE or the shafts similiar to those 7-11 straws?

Sorry for the clutter if this was posted somewhere already, I really did look.

I found websites and I also found out they don’t sell them at Home Depot, but I didn’t find much else in the way of a physical location for this stuff.