Designed for 10mm M3 screws and requisite jam nuts. UPDATE 2019.08.05 - Not dead yet! Added another front panel, this one designed to attach a 120mm fan. UPDATE 2019.01.19: - Major file overhaul. New files, new naming scheme, et cetera. Old parts should work with new parts. Major dimensions should be the same. - Added .zip file of the G4-style parts. - Added .zip file of the Inventor .ipt master files. Maybe I won't lose them this time!