A shackle is a type of fastener used to connect two or more objects. Shackles are typically made of metal, and they come in a variety of shapes and sizes. Shackles are used in a wide variety of applications, including:
There are two main types of shackles: bolt-type shackles and screw-pin shackles.
Bolt-type shackles have a U-shaped body secured by a bolt, nut, and cotter pin. The cotter pin keeps the nut from backing off under vibration, which is why bolt-type shackles are typically specified for permanent or long-duration rigging.
Screw-pin shackles have a U-shaped body with a pin that threads directly into one ear; no nut is used. They install and remove quickly, which is why they are typically used for temporary or frequently-reconfigured rigging where the pin can be visually monitored.

Crosby is a leading manufacturer of shackles. Crosby shackles are known for their high quality and durability. Crosby shackles are used in a wide variety of applications, including:
Green Pin is another leading manufacturer of shackles. Green Pin shackles are known for their high quality and affordability. Green Pin shackles are used in a wide variety of applications, including:
When choosing a shackle, it is essential to consider the following factors:
When using shackles, it is essential to follow these safety tips:
By following these safety tips, you can help to ensure that shackles are used safely and effectively.
Hhilifting.com is the best place to buy shackles. We offer various shackles from leading manufacturers, including Crosby, Green Pin, and GN. We also offer competitive prices and fast shipping.
Please visit our online store or contact us today to learn more about our shackles.
Shop OnlineA shackle is a U-shaped metal connector used to link rigging components - slings, hooks, wire rope, and other hardware - in lifting, towing, and securing applications. The opening of the U is closed by a removable pin, which is either a screw pin that threads into the body or a bolt secured with a nut and cotter pin. Shackles are available in a range of sizes and WLL ratings from manufacturers including Crosby and Green Pin. Browse Shackles At Holloway Houston.
A screw pin shackle consists of two components - the body and the pin - and is designed for quick assembly and disassembly. It is suited to temporary connections where the rigging configuration changes between lifts. A bolt-type shackle uses a bolt, nut, and cotter pin and is designed for semi-permanent or long-duration connections where the greater complexity of assembly provides a more secure lock against the pin backing out.
Industrial lifting shackles are typically forged from alloy steel or carbon steel, with some specialty applications calling for stainless steel or other corrosion-resistant alloys. The material affects the rated Working Load Limit, fatigue performance, and appropriate service environments. Stainless steel shackles are generally associated with marine and food-grade environments where corrosion resistance is a primary requirement. Manufacturer documentation identifies the material specification and appropriate use conditions for each product.
Inspection programs for shackles typically look for visible damage, deformation of the body or pin, corrosion and pitting at the threads and ear grooves, heat damage indicated by discoloration, and illegible identification markings. ASME B30.26 covers the rigging hardware inspection framework, including shackles. Holloway Houston's inspection services support customers managing inspection cycles on rigging hardware.
The content provided is for general informational purposes only and is not a substitute for professional advice. Holloway Houston, Inc. is not responsible for any actions taken based on this information.