The Thomas & Betts 54170-SP is a standard barrel copper lug, engineered for robust and reliable electrical connections. Constructed from high-quality copper and finished with a silver plating, this lug provides excellent conductivity and corrosion resistance. Designed for use with 4/0 AWG wire and a 1/2" bolt size, it's ideal for applications requiring a secure and durable termination. The inclusion of an inspection hole allows for visual confirmation of proper crimping, ensuring a dependable connection. Commonly used in industrial power distribution and electrical systems.