Will a magnet attract metal screw?

Take any fastener and rap it on a magnet several times and you'll magnetize it to a degree. Or wrap a coil of wire around it, power it up with a DC source, and then smack the fastener (screw) a bunch of good licks while it's under the influence of the electromagnetic field. The screw will become pretty well magnetized, at least enough to hold it onto a driver bit.