Thomas ; Betts RB Series Ring terminal in blue color is vinyl insulated and has a stud of size 1/4. It is made of copper and has electro-tin plating for corrosion resistance. It has a voltage rating of 600 Volts and can withstand temperature of 105 deg C. Terminal has a extra long PVC insulation sleeve to provide protection and relieve bending stress at wire flex point. It has a brazed seam barrel that that is serrated to obtain high pullout value. It can accommodate wire of size 18 - 14 AWG. It is UL 94 V-0 flammability rated to withstand hazardous environmental conditions. It measures 1.140 Inch x 0.500 Inch. Terminal is UL listed/CSA certified and RoHS compliant. Also known as -Thomas & Betts 14RB-14 Vinyl Insulated Ring Terminal 18-14 AWG 1/4 Inch Stud C