Our H173 shackle is a reliable alternative to traditional S-hooks. When you need a wider opening, these shackles are the perfect solution. The bolts are 3/8″ in diameter and the overall length of the shackle is 3 9/16″. The smaller opening measures ½” across, while the larger opening measures 1 1/16″. Unlike S-hooks, these shackles can be reused multiple times, making them a more sustainable option.

To open and close the H173 shackle, you will need the H175 wrench (not included). This shackle features a head on the bolt that makes it much more difficult to remove, deterring vandalism. With a shackle hardness of 212 HBS and bolt hardness of 176 HBS, this shackle has a tensile strength of 9491 lbs.

In terms of durability, the H173 shackle should last up to 5 years in optimal conditions and up to 2 years in harsh conditions. Please note that some conditions may require replacement sooner.

These shackles are easy to install and are much stronger than S-hooks. In fact, some cities and parks are now requiring their use instead of S-hooks. Use the H173 shackle with our swing hangers, Tire Swing, and chain (excluding C128 – C129 chains) for a reliable and safe play experience.

This is for children 0 – 12 years old only. Adults should supervise children at all times. Do not allow children to use unsafely. Do not allow it to be used if damaged.

IMPORTANT: Please read for important information. In this material we have tried to provide some requirements stated in the CPSC Handbooks, ASTM F2373-11, F1487-11 and F1148-09. However, we in no way intend for this to be a complete list of requirements. Also these publications are updated frequently with changes therefore, you should read these publications yourself to determine if any part or installation could prove a danger to a child.

To help keep children safe from harm, review installation and maintenance instructions before installing equipment. These are located in the description of every product on our website. Download and print these instructions and keep in a safe place. Our website also has a “Product Testing Information” page. All products are tested for lead, phthalates and tensile strength. You can also call us at 1-800-227-7529 for more information or see

Installation: Our parts are sold as either replacement parts or components of a set, unless you are buying our Metal Frame Set, therefore these parts need to be installed according to the sets installation instructions. If the installation instructions differ from ours please contact us at 800-227-7529.

Make sure you are using correct size of shackle. The shackle should not crimp material producing a wear spot on whatever material you are attaching to shackle. Unscrew both shackle bolts from one side of shackle body with H175 wrench. Place the large bolt through the widest opening present on one of the components you are attaching together. Place the smaller bolt through the narrowest opening present on the other component you are attaching together. Screw shackle bolt back into shackle body. Shackles can be used in various assemblies. Call us if you have any questions. Shackles should never be pulled at an angle because the capacity will be tremendously reduced. Centralize whatever is being attached on the bolt with suitable washers or spacers. Ensure the bolt is correctly screwed into the shackle eye with an H175 wrench. Check that the threads are fully engaged with the body, but not so tight that it causes the body to bend in or that the threads go past the body by more than two threads.

Maintenance: Do the following to reduce the chance of serious injuries. At beginning and end of each play season and once a month during play season, check for sharp edges and/or cracks in metal. Check for excessive wear.   Check for rust and to make sure bolt is still tight and not more than 10% worn. Replace parts as necessary for safety. The shackle bolt should never be replaced with a regular bolt. Maintain detailed inspection and maintenance records for public-use playground equipment.

Any damage from vandalism, abuse or misuse VOIDS all warranties.

Weight (lbs) 0.45
Dimensions (in) 6 × 4 × 1 in