All new All Alloy Screw Pin Anchor Shackles are 100% forged alloy steel, quenched and tempered, and powder coated HI-VIZ Safety Orange. These shackles are approved for overhead lifting and are 100% proof tested at 2 times the working load limit. They are marked with X100 Brand, Size, Working Load Limit, Conformity, and Traceability. Ultimate load is 5 times the Working Load Limit