Global1Resources offers mounting hardware kits for square and round hole rackmounts. When working with server racks and computer cabinets, cage nuts and screws become crucial. No matter the enclosure you are working with, mounting hardware is needed. There are different types of cagenuts and screws that these cabinets use. The Dell rack typically calls for the 10-32 screw and cage nut. This is your standard square holse screws. Many of your square hole tabs will work with the 10-32 or the M6 cage nut. Please contact Global1Resources with any questions you may have on rack mounting hardware.