Save time and create a super strong mount for just about anything on your bike using these bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. Bungs are counterbored to fit standard 5/16" socket head bolts so that the head of the bolt is flush inside the bung for a clean-looking installation. Pair these bungs with any of our matching 5/16-18 threaded bungs and you have a professional quality mounting solution. Bungs measure 3/4" in diameter x 5/8" long. See photos for all dimensions. Sold in packs of 4.