Colombus Mckinnon Shackles

Columbus McKinnon CM Shackles: Built for the Demands of Professional Rigging

When a load is suspended in the air, every link in the rigging chain matters — and few links are more critical than the shackle. Columbus McKinnon, operating under the trusted CM brand, has spent over 150 years engineering rigging hardware that professionals stake their safety on. Their shackles represent some of the most rigorously developed connecting hardware in the lifting industry, backed by domestic manufacturing, strict material standards, and proven performance data.

What Sets CM Shackles Apart

The flagship of the CM shackle lineup is the CM Super Strong Shackle. Designed and forged in Chattanooga, Tennessee, CM Super Strong shackles are carbon-type shackles with strength ratings that are up to 50% stronger than comparable-sized carbon shackles. That kind of performance advantage isn't just a spec-sheet claim — it has been independently validated through third-party comparison testing, making these shackles a go-to for riggers who can't afford margin-of-error surprises.

For even more demanding applications, CM offers Alloy Anchor Shackles. CM Alloy Anchor Shackles are designed with a 5:1 design factor and have a strength rating approximately 50% higher than a comparable-sized carbon shackle and about 25% stronger than Super Strong shackles. Sizes from 3/8-inch to 2-inch are made in the U.S.A. from domestic Special Bar Quality (SBQ) steel with fine grain, reduced sulfur, and phosphorus. All shackles feature alloy quenched and tempered pins, with working load limit and traceability codes shown as permanent markings on the body, meeting dimensional, marking, and performance requirements of RR-C-271 with a 5:1 design factor.

A Shackle for Every Application

Columbus McKinnon produces a wide variety of shackle types, including anchor, chain, long reach, DNV, and web sling shackles. This breadth of product ensures professionals can find the right tool for the job, whether they're on a construction site, a marine vessel, or an industrial floor.

• Long Reach Shackles: As one of the only manufacturers of long-reach shackles, CM designed these for construction applications where a longer reach is needed to attach to pick points.
• Web Sling Shackles: Designed to protect synthetic slings while ensuring secure and efficient lifting, these shackles feature wide bows and smooth edges to minimize wear and tear, making them ideal for delicate or flexible rigging setups.
• Industrial/Government Shackles: An Industrial/Government shackle is a Super Strong shackle de-rated to meet — not exceed — Federal Specification RR-C-271, meaning it shares the same dimensions and performance characteristics as a Super Strong shackle but is stamped with specifications to meet government requirements.

A Legacy of Lifting Excellence

With a history spanning over 150 years, Columbus McKinnon is a global leader in lifting and intelligent motion control technology. That heritage is baked into every CM shackle — from the choice of domestic SBQ steel to the permanent traceability markings that allow full inspection and accountability throughout a shackle's service life. For riggers, engineers, and equipment operators who demand reliability when it counts most, CM shackles deliver the confidence that comes from a brand built on lifting science.

Browse the full range of shackles available from CM, or explore everything Columbus McKinnon has to offer across the complete spectrum of rigging and lifting hardware.