When it comes to shackles, Columbus McKinnon prides itself on providing the strongest and most reliable products on the market. Manufactured through our state-of-the-art forging process in Chattanooga, Tennessee, CM shackles are available in a variety of styles and materials for virtually any rigging application. Choose from carbon, alloy or super strong shackles in screw pin, bolt, nut & cotter, or round pin styles.