3M Scotchlok large gauge compression butt connector has a non-insulated, seamless barrel and provides electrical connection to a pre-stripped end of a stranded wire. It has chamfered barrel ends that enable fast, simple wire insertion and allows for correct positioning with built-in wire stop. 3M Scotchlok large gauge compression butt connector ensures an ideal fit while offering reliable and safe performance. The connector has a non-insulated, seamless barrel and withstands a maximum temperature of 347 °F (175 °C). Electrolytic copper construction offers good conductivity and a tin-plated finish resists corrosion.