For all your fabrication needs... MADE IN THE USA Sold in Sets of 2 Machined from mild steel. Counterbore fits a 3/8" Socket Head Cap Screw We offer MANY different sizes and styles of bungs. Dimensions: OD - .75" Height - .75" ID - .39 Counterbore ID - .585 Counterbore Depth - .4" Weight - .8 oz (each) Finish: Machined Steel Fitment: Designed to fit any bike that will accommodate the above listed dimensions.