Use of

When using a shackle with multiple sling legs, the sling legs should rest against the body of the shackle, not the pin. If multiple sling legs are present in the body, they should not exceed 120° in angle. The angle of loading affects the stress in the shackle, so as the horizontal angle decreases, the stress increases in the shackle—see below

Side Loading Shackles

Some shackles are engineered to handle some form of side loading. For these types of shackles, there will be a reduction to the Working Load Limit as specified by the manufacturer.

Chain shackles are not recommended for side loading, as it could permanently twist or deform the bow of the shackle.

Per Rigging Hardware, the following rated load reductions will occur when side loading angle deviates from in-line (0°):

Rigging Best Practices

• Always ensure the pin threads are fully engaged and the shoulder of the pin is in contact with the shackle body
• Always ensure the cotter pin in is good working condition, and if present, is being used in conjunction with a bolt-type pin or round pin
• Avoid contact with sharp edges that could damage the shackle
• Avoid shock loading
• Center the load in the bow of the shackle to prevent side loading

Rigging Best Practices

• If the shackle is side loaded, the rated load shall be reduced according to the manufacturer or a Qualified Person
• When using a screw pin shackle, do not rig the load in a manner that would cause the pin to unscrew
• Use bolt-type shackles for long-term or semi-permanent installations
• Do not drag shackles across rough or abrasive surfaces
• Multiple slings in the body of a shackle shall not exceed 120° included angle