A shackle has two main paths, the body and the pin. The body can have the anchor shape (bow) or a chain shape (D type). Each body shape can be used, depending on the specific application, with a screw pin or bolt-type pin.
- When selecting the right shackle, refer to manufacturers' tables for the safe working loads of the shackles. The rated capacity should be imprinted on the shackle and be visible.
- Shackles are sized according to the diameter of the bow section rather than the pin size. Never use a shackle if the distance between the eyes is greater than listed in the manufacturer's tables.
- Consult with the manufacturer if using shackles in extreme conditions (e.g., temperature higher than 204°C or lower than -40°C, or exposure to corrosive fumes).
- Use a shackle when 2 or more ropes must be placed on a hook.