This video showcases Auto Bolt’s National M20 Diameter 4 die high- speed bolt maker in action. Watch as parts get transferred from one die to the next. Better be quick though, because being high speed, it moves fast! The M20 capabilities range from 5/8″-1″ (M16-M24) in diameter X 6″ in length (150MM). This new piece of equipment will provide additional support to meet our customer’s needs. Click on the icon to the right to watch the video.