Bow type Shackle Pin. The type shackle with a wide space, the type is bow. screw pin anchor bow shackle. Round pin anchor bow shackle bolt type anchor bow shackle commercial type steel shackle BS large bow shackle Safety Type Grade S Bow Shackle Commercial Carbon steel shackle DEE & BOW Shackle forge shackle, alloy pin, whole forged, heat treated. Shackles are used in a variety of lifting, pulling, and tie down applications.