The Complete Hoist Assembly includes the hoist anchor base, fixed shackle, threaded rod, washer and nut. It is made from grade 316 stainless steel for maximum corrosion resistance and durability. This base is offered in sizes ranging from 1/4" - 1" to fit a wide variety of lifting applications. The Anchor Base is primarily used as a way to attach lifting points to objects with no natural attachments. It features a set screw for securing it to the stud. The shackle has a 180 degree pivotingmore capability and the base can be secured in the desired position to provide a full range of motion. less