VLYNX Marine Style Wing Nut Stainless Steel Battery Terminal Posts (Replace any M8 battery screw posts, 8mm) Marine style posts for any battery with M8 (8mm) screw in terminal posts Stainless steel wing nut terminals High quality design is easy to install and easy to use Easily convert your battery's M8 screw posts to marine style screw posts Includes 1 pair of VLYNX Marine Style posts