D Shackle, Galvanised Carbon Steel, M6 to M32, Lifting and Rigging

A D shackle is the standard link between a sling and a load: the D form keeps the pin in line with the pull, which is what stops the shackle bending open under load. This is the galvanised carbon steel range from M6 to M32. Made by Minqiang.

Galvanised D Shackle: Overview

Shackles are sized by the pin thread, not by the load. An M12 shackle looks small next to a lifting sling, but it is the pin that decides the rated capacity, so the size has to be matched to the sling and the load rather than chosen by eye.

The D form is the shape to use for a straight pull. A bow shackle is used where the load comes in from several directions, but a D shackle keeps the pin aligned with a single pull and takes less space in a tight eye.

This range is galvanised carbon steel with a screw pin, from M6 up to M32, and is specified with a working load of up to 9 t.

Key Features at a Glance

• Galvanised finish – carbon steel with a zinc coating for outdoor and marine use.
• D form – pin stays in line with a straight pull.
• M6 to M32 – ten sizes covering light rigging to heavy lifting.
• Screw pin – removable pin so the shackle can be fitted to a closed eye.
• Rated up to 9 t – working load as specified by the supplier.

Selecting and Using a Shackle

Sizing

Match the pin diameter to the sling or eye it has to pass through, then check the rated load against the lift. Undersized pins wear and open under load; oversized shackles will not sit in the eye they are meant to hold.

Mark the size on the shackle when it goes into service. Once a mixed box of shackles is loose in a van, the only reliable identifier is the marking on the body.

D or bow

Use the D form for a straight pull and the bow form where the load direction changes or several legs meet. The D shackle is narrower, so it fits a tight eye better.

Never side-load a shackle: a load applied across the body rather than through the pin is the usual cause of a bent or opened shackle.

Inspection and Care

Before every use

Check the pin thread for damage, look for cracks at the shoulders and make sure the pin seats fully. A pin that will not seat by hand will not hold its rated load.

Retire any shackle that shows a bent body, a stretched bow or wear of more than a tenth of the section; galvanised coating loss is not itself a reason to retire it, but rust jacking under the coating is.

Storage

Store shackles hung or boxed, not loose in a bucket where threads get knocked. Keep galvanised items out of standing water: the coating protects the steel, but a wet thread will still corrode and seize.

For lifting applications, follow the inspection regime that applies where the equipment is used.

Available Models and Prices

Ten sizes are in stock. Prices are per shackle in USD.

Specifications

Packaging Information

Shackles ship bagged or boxed by size. Carton quantities are available on request.

Where It Is Used

Lifting and rigging, sling and strop assemblies, towing and recovery, marine and dock work, and general engineering where a rated connection is needed.

Choosing the Right Item

1. Size the item to the connection it has to make: pin or thread size first, then the rated load or working pressure.
2. Choose the material by environment: galvanised or plated carbon steel for general work, stainless for salt water and constant wet.
3. For stock, buy the sizes that appear on most jobs and mix cartons rather than deep-stocking one size.
4. Keep the moving parts – pins, gates, stems and liners – as service items, since they wear before the body does.

Care and Maintenance

Check the thread, pin or gate before each use: the moving part is what fails first on a fitting.

Do not mix stainless and galvanised parts where the assembly stays wet; the two metals corrode each other.

Store fittings dry and off the floor, and keep damaged items out of stock rather than returning them to the box.

OEM and Bulk Supply

The supplier accepts OEM and ODM work with own-brand marking and packaging, so a range can be supplied under a retail brand.

Frequently Asked Questions

Which options are available?

This listing covers 10 options: M6 D Shackle; M8 D Shackle; M10 D Shackle; M12 D Shackle; M14 D Shackle; M16 D Shackle; M18 D Shackle; M20 D Shackle; M25 D Shackle; M32 D Shackle. All are in stock and priced individually.

What is it made of?

Key material: Galvanised carbon steel. Other specifications are listed in the Specifications table above.

What is it used for?

Lifting and rigging, sling and strop assemblies, towing and recovery, marine and dock work, and general engineering where a rated connection is needed.

Can I buy in bulk or with my own branding?

Yes. Own-brand marking and packaging are available on request, with OEM and ODM support.

Summary

A D shackle is the standard link between a sling and a load: the D form keeps the pin in line with the pull, which is what stops the shackle bending open under load. Offered in 10 configurations, each priced separately.

Typical use: Lifting and rigging, sling and strop assemblies, towing and recovery, marine and dock work, and general engineering where a rated connection is needed.