The BK/HTB-26I-R is a HTB-series 20A 250VAC panel mount cartridge In-line Fuse Holder with low profile (rear panel hex-nut), 1/4-inch quick connect holder terminals. This holder withstands 15 to 20 lb-in torque to mounting nut when mounting fuse holder to panel, its high temperature, flame retardant, thermoplastic meets UL 94V0, for use with 1/4 x 1-1/4-inch and 5 x 20mm fuses. RoHS compliant version.