Absolutely, copper cable lugs are frequently tin-plated to boost their resistance to corrosion. While copper is naturally a great conductor and has decent resistance to corrosion, it can still fall victim to oxidation when exposed to moisture, air, and tough environments over time. Tin plating involves applying a thin layer of tin over the copper lug, creating a protective shield agai... https://www.pioneerpowers.com/copper-cable-lugs.php