Source for threaded rod and nuts?

Your local hardware store?

There has been a lot of discussion lately about threaded rods. I recently purchased 1m each of M4 and M5 threaded rod with 8 nuts for $5.

Well then if you are in the US of A.. use that other bastion of all things machine related.. McMaster Carr!
http://www.mcmaster.com/ Threaded rod is right there on the front page...

If only their freight to Australia was more reasonable I'd be shopping there everyday

Or theres good old Harbor Freight (although their products smell a little too imported sometimes though if you know what I mean....)

McMaster is actually the first thing I thought of, but it's all very expensive and they don't seem to have much in the way of metric nuts. The smallest I see is M12, and that's $25 per nut! Maybe I'm just looking in the wrong spot.

I didn't have any better luck on Grainger. I forgot to try Harbor Freight. Thanks.

Thanks, I'm not sure how I missed that before.

I was thinking that I wanted to buy an actual flange nut instead of regular nuts because it would be less work to use something pre-made. But, after seeing the price of flange nuts, I took a closer look at my SD2 and discovered that they made their own nuts too. It looks like they used a regular nut sandwiched between two pieces of wood. That's probably good enough for my project, so I'll give it a try and see what happens. How hard could it be?

I'm in the US, so Australia doesn't help me too much. Not that I wouldn't mind visiting, but the airfare would make for some seriously expensive parts.

Don't tempt me, I have vacation time I need to burn