Scout's Toolbox Talks

Safe Lifting Practices

Toolbox Talk:

Shackle Safety Starts with the Pin

June 22, 2025

The shackle is only as strong as its pin. A missing, bent, or mismatched pin can turn a reliable lift into a deadly failure.

Why It Matters:

Shackles are commonly used in rigging, but they’re often taken for granted. The pin is the component that holds the load together — if it’s not the correct type or isn’t properly secured, the shackle can fail during the lift. It’s not just about weight; it’s about how the force is applied.

Key Points:

  • Use manufacturer-matching pins only. Don’t substitute bolts or random pins — they’re not rated for lifting.
  • Check for thread damage. Screw pins should thread in smoothly and fully. If threads are damaged, tag it out.
  • Verify full engagement. Ensure the pin is completely seated and secure. Never leave pins backed off or loose.
  • No mixing types. Don’t combine a bolt-type pin with a screw-pin shackle body or use components from different manufacturers.
  • Inspect for signs of wear. Look for distortion, cracks, or elongation in the shackle body or pin.

A loose or incorrect pin is all it takes to drop a load.

Ask the Crew:

  • Are we checking the pins for full engagement before each lift?
  • Do we have any shackles with mismatched or damaged pins?
  • Are all our shackles properly marked with WLL and manufacturer info?