Rigging Qs: Shackle Ratings in Short or Metric Tons, Inspection Requirements

In this episode of Rigging Qs, we’re answering questions about shackles. Learn how to tell if your shackle’s Working Load Limit is rated for short or metric tons. Do shackles require documented periodic inspections? How much torque is needed to tighten your pin, and what is the hole for in the pin head of a screw pin shackle? Does OSHA have anything to say about anti-seize?

Want to learn more? Check out these articles and FREE downloads!

FREE DOWNLOADS! Hang these on site or in your shop!

Shackle Markings Identification Guide


Rigging Gear Inspection Field Reference


ASME B30 Markings and Identification Guide


Lifting & Rigging Best Practices Infographic


More Articles and Videos!

Different Types of Shackles: Anchor vs. Chain and Screw Pin vs. Bolt Type


ASME B30.26 Shackle Inspection Requirements & Best Practices for Use


How Much Does an OSHA/ASME Compliant Rigging Inspection Cost?


How Can Lifting & Rigging Training Help with OSHA Compliance?


Do You Know What Damaged and Unsafe Rigging Equipment Looks Like?


Schedule Remote or In-Person Rigging Training Here:


Contact Mazzella’s Rigging Division Here:


In this video:

0:00 – Intro

0:23 – Is a shackle rated in short tons or metric tonnes? How can you tell?

1:22 – Are shackles required to have documented inspections?

2:00 – How much torque should you apply to your shackle pin or bolt?

2:24 – Should you loosen your shackle pin an 1/8 turn before a lift?

3:30 – What is the hole for in the pin head of a screw pin shackle?

3:49 – Can you clean your shackle pin threads with anti-seize?

4:10 – How can you learn more?

Copyright 2023. Mazzella Companies.

Subscribe to The Lifting & Rigging Channel on YouTube
Disclaimer: Any advice, graphics, images, and/or information contained herein are presented for general educational and information purposes and to increase overall safety awareness. It is not intended to be legal, medical, or other expert advice or services, and should not be used in place of consultation with appropriate industry professionals. The information herein should not be considered exhaustive and the user should seek the advice of appropriate professionals.