Yeah, the borgs generally are lousy that way. Just to give a pleasant counterpoint to your HD experience. I was installing a motor isolation mount on a customers machine today and because of the addition of the isolation plate the mounting bolts weren't long enough. There is (really handily, I gotta say) A Fastenal shop literally a hundred feet down the road. Walked in with bolt in hand, found the HD equivalent drawer unit in the front of the store and started to look. Fastenal dude heard the bell and came up. What can I help you with? M6 bolt, too short, need the same thing 5 or 6 mm longer, wait check my metric to English dictionary, quarter inch, whatever, just a little longer. It's an aluminum extrusion, the 2 threads catching aren't gonna work. Hmmmm, turns and walks towards the front of the store muttering under his breath, tri=lobe, axial design....... Caught that. You were right it's M6, we don't have this bolt head design in stock but we can have it at 8 tomorrow. Not tomorrow morning, we will have it at 8am tomorrow. It doesn't have to be that exact design, normal bolt and a washer works. Oh, yeah, ok. Here, here, need nuts? No, no you said it's going into an extrusion. Freakin fastener rain man. That whole exchange was like 2 minutes. Boom 12 bucks, company card, take it easy man. You too. Gotta love a specialist.

Jon