What's it called

Body shims. Autobody repair suppliers.

Used to align fenders and the like with the rest of the car.

Might do for what you want.

Cheers Trevor Jones

--What's the application? Sounds like a heat sink to me, but not if they're made of steel..

I want flatbars with slots in them to make things adjustable. Where a bolt shank can slide in the slot, and then a nut cranked down when the piece is in the right position.

It would look like a long oval.

Steve.

Define "quantity". 10 or 100,000? They may be out there ready made, but I'm not aware of a source. Have you seen them as a loose part somewhere?

If you have to have them made, any production sheet metal shop should be able to punch you out some.

I would buy 100 to start. I want it weldable, so not galvanized. And at least 16 ga thick for welding. Preferably 14 or 12.

Seen tons of them as component parts, the most comparable being the hinge thingy that holds up a storage box lid when you lift the lid and the side thingies catch so that the lid doesn't fall. Flat bar with a slot.

STeve

--Oh, well you might try looking for the finished item at General Wholesale Products; these things are used to make rack shelving amongst other things.. They're probably already painted tho..