Where can I get metal stock for drilling a spacer?

just wondering why do you need spacer for your sway bar?

Most scrap yards have cut offs and smaller pieces of metal that you can buy by the pound. It'd probably be more expensive, but you could always try buying some metal from a machine shop.

We have raided some recycling/scrap/foundry places for some stock...made a super hairy rear bumper out of 5ft of C channel and old U bolts.

Probably not the safest/most legal thing to do but the place was known for extremely lax security...almost like they wanted us to take it instead of them having to do something with it. Like a fence/gate that was rusted OPEN.

I know some of the mom/pop type handyman hardware places have some stock.

It would probably be easier to use some type of square tubing cut to the thickness you need. Either weld up a plate at the top and bottom with hole for the bolt or use a big washer. This way you have more of a structure that can be made to the exact thickness you need. It will be alot easer to weld, cut, or drill a 1/8 or less square stock than a 1/2in piece of plate.

Lowes or Home Depot