Ferraz Shawmut GPM-A series Panel Mount Fuse Holders will accommodate 5mm x 20mm fuses; most are approved by U.L. and CSA. Cap and body material is bakelite or polycarbonate and function a screw-in or bayonet style closure. Finger-grip or screwdriver slots are available. All holders are rated for up to 250 volts with amp ratings ranging from 3A to 10A.