Replacement Screws for top of Madcatz TE Versus Stick?

Hey guys, I just re did a new Versus stick with art and plexi and buttons but the seller I got the stick from did a real number on the Alan Key screws that hold the art down on the stick. They are all stripped beyond use. I got them out but I am not putting them back in. Any idea where I can find some nice replacements? My local hardware store was no help. They said it's a weird "in-between" size.
HALP!
Thanks!