Last time I dealt with MSC they wanted you to open an account, they aren't real big on small orders and they didn't have black iron square head bolts and nuts. But they have everything else you need and were good about getting it to you. I have inthe past spent a lot of money with them.
Lately for hobby size orders I have been using Travers
http://www.travers.comWhat I am looking for is somebody suppling black iron, square head facteners and wrougth iron furniture. No zinc/cadium stuff.