What kind of screws and where can I get replacements for Electro Harmonix cases?
I'ld take one with me to the local hardware store and start going through bins...you would hope they're a common thread/length sheet metal screw.
Though you never know with EH, they could have re-invented the screw.
edit:afterthought
And VCR's have nice selection of the brassy colored various size [length and thickness] self tapping phillips screws, I use them all the time.
They tap easily into metal and perf.