Epoxy-Coated Clamp-Type Wing Nut Terminals convert standard post to marine post or other special uses. The epoxy coating aids in polarity identification and corrosion resistance. This product is packaged in a clam shell of two, with one positive terminal and one negative terminal and includes two brass plated wing nuts. The positive terminal has a 3/8\" stud size and the negative terminal has a 5/16\" stud size.