The Phillips Stud Heavy Duty Tin-Plated Straight Copper Battery Terminal Lugs are designed to provide superior electrical conductivity and strength. The lugs feature a wider and thicker pad for better electrical conductivity and greater strength than standard lugs. The copper battery lugs are tin plated for added conductivity and corrosion resistance and they exceed SAE standards and conform to TMC and ATA recommended practices. FleetPride is your First Click in Heavy Duty®.