Hi, so I just moved into a new place (leased, not owned), and I have a
slight problem... the refridgerator isn't magnetic, and I have a lot
of magnetic spice containers that I was going to put there. So I
bought a piece of sheet metal that the magnets do stick to.

I want to mount it to the piece of wallboard on the side of the
refridgerator.

What's the best way to mount it? Just drill holes in the corners and
use some short drywall screws? or is there a better way?