Shackle

Shackle compromising a body and pin which are readily separable and can be used to connect a load to a lifting machine directly or in conjunction with other lifting accessories.

There are different types of shackles nowadays, like Dee Shackles, Bow Shackles, Grab Shackles, Webbing Sling shackles, Grommet Shackles, Long Dee Piling shackles and etc. Different manufacturers follow different standards. Some of the standards related to shackles are:

• ISO 2415
• ASME B30.26
• RR-C-271
• BS EN 13889
• BS 3551
• BS 3032

This Technical Guidance covers only BS EN 13889

Shackle Marking

Working load Limit (WLL),  Manufacturer’s name or logo, Allowable angle, Size Of Shackle in inches, Product identification or traceability code, Product Icon.

Types of Shackles.

1. Bow Shackle: use when you need 2 legs attached to the Bow shackle pulling at an angle to the load on the hook.
2. Dee Shackle: designed for a single straight-line pull

DEE Shackles (D-Shackles)

Shape:
DEE shackles have a D-shaped body with a narrow profile. The straight sides help maintain load alignment.

Best For:

• Straight-line pulls

• Lifting where side loads are absent

• Connecting slings, chains, or ropes to loads

Advantages:

• Strong for straight-line tension

• Compact design for tight spaces

• Less movement within the shackle body

Limitations:

• Not ideal for multi-directional loading or side pulls

• Can bend or deform under side loading

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Bow Shackles (Anchor Shackles)

Shape:
Bow shackles have a rounded, “O”-shaped body, offering a wider arc.

Best For:

• Lifting with multi-leg slings

• Situations where load angle changes

• Applications with dynamic or side loading

Advantages:

• Greater freedom of movement for the attached components

• Can handle angular loading better

• Less stress concentration under shifting loads

Limitations:

• Slightly larger and heavier than DEE shackles

• Not as strong as DEE shackles for strictly straight-line loads (pound for pound)

⚠️ General Safety Tips for Both:

• • Always check the Working Load Limit (WLL) before use

  • Inspect shackles regularly for wear, cracks, or deformation

  • Make sure the pin is fully secured and tightened before lifting

  • Never side-load a DEE shackle

  • Use appropriate size and type for your specific rigging setup