Scotchlok™, 7000031373, Connector, Standard Barrel, 35 kV, Specifications: Standard Barrel, Copper, Black, 2 in OAL Dimensions
They are designed to connect copper conductors. Each connector is electro-tin plated to resist electrolytic corrosion. They are installed using standard industry tooling. Chamfered ends and an integral center cable stop ensure simplicity and ease of conductor insertion.