A shackle is a U-shaped piece of metal secured with a clevis pin or bolt across the opening. They are used to make connections to slings, rope, cable, etc. Shackles are the primary connecting link in ...

Class 2 shackles use screw-pins that pass through an opening on one only side of the shackle. The pins use a key-like design and exhibit extreme deformation before failure. Class 3 shackles have ...