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Shackles

Shackles - General information

These simple devices are used to connect wires, chains or ropes to each other or to anchoring points. They consist of a U shaped body and a pin and are generally made of steel or stainless steel but Arthur Beale's also stock shackles made from bronze and brass.

Choosing the correct shackle depends on the application:
- To join more than one wire, chain or rope to an anchor point choose a Bow Shackle. To join a single wire or rope to an anchor point choose a dee shackle.

Bow and Dee Shackles can be supplied with Screw Pins, Clevis Pins or Bolts.
Clevis Pin shackles are generally used to connect directly to pulleys. The pins are secured with a split pin.

For lifting operations you should choose a “Lifting Shackle”.
A lifting shackle will be a steel shackle which either complies with the European Standard BS EN 13889 or the US Federal Specification RR-C-271b [which would meet the EN standard]. It was the influence of the oil industry that has made US Fed Spec. shackles so popular. Hopefully an international standard will be agreed in the future. All lifting shackles must be marked with their WLL, manufacturers name or symbol, traceability code and grade mark. They should also have a CE mark. They should be supplied with either a Report of Thorough Examination or a EC Declaration of Conformity and instructions for use. Our sister company Flint Hire and Supply Ltd will be able to arrange to supply you with shackles supplied with full certification.

You will notice that pins on Lifting Shackles are all slightly fatter than the material that makes the body of the shackle. This is because the modern WLL allows the load to be applied to the centre of the pin. Older legislation required the load to be evenly spread along the pin. Care should be taken to ensure these old shackles are no longer in service.
Please be aware that lifting shackles are marked with a Working Load Limit in kg [or tonnes] but Karabiners used for personal protection equipment are marked with the Breaking Load in kN.


Shackle Care

Shackles should be inspected before use and every six months while in service. Check for signs of wear, corrosion, heat, cracks, distortion and function. Discard any doubtful shackles and replace with new ones.