[cericd]

Thanks for the info guys. Guess I'll have to look for a better Ace than the one near me. Regarding the size of the screws, they're not body bolts. They're much smaller. They are for fastening the heat stove parts together around the driver's side exhaust manifold on my '70 C10. Black body bolts seem to be much easier to find locally. The ones I need are basically sheet metal screws and the ones I've found are hex/washer head with a slot for a slotted screw driver. They're also the wrong finish. Probably for HVAC use.

Still looking.