Titan3 wire connectors feature ribbed caps and are designed to securely connect and insulate copper wires. Inside the shell, a zinc-plated square wire spring firmly grips the wires as the connector is twisted, ensuring a secure and long-lasting hold. Flame-retardant shells offer durability, while the deep skirts prevent flashover and ensure excellent insulation. Perfect for both professional electricians and DIYers, these connectors are compatible with a variety of wire size combinations and offer long-lasting performance and reliability.