The case screws on the F-1X are 6/32 threaded button head style. You need a 1/16 hex driver to install or remove them. If you can't find them locally, replacements can be
found in our online store.
One the older cases, the screws are 6/32 Philips #2 flat head undercut style. There are 6 round head screw on this style as well, holding the top and the bottom to the back panel.
(Message edited by mica on August 26, 2011)