As dumb as it sounds, I'm building a 54mm av bay (my first), and am looking for a source of threaded rod. I'm looking for two pieces 8" long and 1/8" in diameter. I assume that Home Depot/Lowes doesn't carry this, so where would I find a source? Would a hardware store carry it? I don't really want to go online, wait, pay shipping. etc. so McMaster-Carr is out.