LockJaw® Synthetic Soft Shackles are a direct replacement to screw-pin shackles. Each shackle functions as a Bow, Anchor, and D-Ring shackle. LockJaw meets or exceeds ASME B30.25 requirements for lifting. The shackles are stronger than steel yet extremely light. If broken by overload, the shackle falls safely to the ground, minimizing the risk of potential injuries. LockJaw is impervious to rust and ice, making it the ideal choice for all weather conditions. All LockJaw shackles are made with a unique patented design and are proudly made in the USA. A 5:1 Design Factor to determines the advertised Working Load Limit (WLL)