The 342058 is a traditional panel-mount fuseholder designed for 3AG fuses and rated at 20 amperes for any voltage up to 250 volts. It features a knurled bayonet-style knob with lettering and 3/16" quick-connect terminals constructed from copper and copper alloy with tin plating. The fuseholder has a dielectric strength of 2400 volts minimum, withstands 15 lb.-in. mounting torque with a maximum panel thickness of 0.187", and is molded from black thermoplastic (UL 94V0) for durability. It operates across an ambient temperature range of -40°C to +85°C and is recognized under the Underwriters Laboratories Components Program and certified by CSA. This fuseholder is commonly used in industrial control panels, power distribution systems, and equipment requiring reliable fuse protection with quick-connect terminal convenience.