This is a standard 5/16" x 3" S-hook. Our commercial quality S-hooks are designed to fasten chain to swing hangers and swing seats to help prevent binding. They are plated to resist rust. S-hooks that are not bought from a playground manufacturer do not have the quality control and have been known to break with the first swinger. This product should last 2 years in harsh conditions and up to 5 years in optimal conditions. Some conditions may require replacement sooner.
Installation: Make sure you are using correct size of S-hook. Closing S-hook should not crimp material producing a wear spot on whatever material you are attaching to S-hook. If this occurs, use a larger S-hook to extend life of product. Because S-hooks are often constructed of heavy-duty materials that can withstand significant weight, they are not easy to close. A pair of pliers designed for closing and opening S-hooks, such as our T100 is necessary. To close S-hooks: Put the S-hook in the front part of the large jaws and close the pliers’ legs and the S-hook will close.Make sure all S-hooks are closed to within .04 to meet ASTM safety standards. Close according to Fig A1.19 for Fastening Devices. To open S-hooks: Use the little jaws at the other end of the pliers’ head. Put the top or outer jaw inside of the closed S-hook. Close the pliers’ legs and the S-hook should open. WARNING: Once the S-hooks have been opened they will have to be replaced to avoid injuries from coming open and/or breaking.
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, Replace parts as necessary for safety. Make sure S-hooks are closed to within .04 to meet ASTM safety standards. Check for vandalism. Maintain detailed inspection and maintenance records for public-use playground equipment.
Any damage from vandalism, abuse or misuse VOIDS all warranties.