Tinned Copper Battery TerminalsStud Size:5/16""Product Features: , ANCOR Marine Grade lugs are manufactured from heavy duty annealed tinned copper, providing for maximum current flow, 100% tin plated copper resists corrosion from salt and moisture, Seamless barrel design allows for maximum strength when crimped, Closed end design seals out moisture so cables stay dry and corrosion free , Product : ANCOR TINNED BATTERY TERMINAL NEGATIVE 5/16 STUD, Manufacturer : ANCOR, Manufacturer Part No : 260010, UPC : 091887800159 SKU: CW48446