3M Scotchlok small ring tongue terminal ensures an ideal fit while offering reliable and safe performance. The non-insulated, brazed-seam barrel has a beveled mouth that guides the wire into position and it withstands a maximum temperature of 347 °F (175 °C). - Non-insulated, brazed-seam barrel ensures a secure fit and offers reliable performance. Its electrolytic copper construction offers good conductivity and a tin-plated finish resists corrosion.