These shackles take the place of S-hooks and need the wrench PG176P to open and close. This head makes removal because of vandalism more difficult. The overall length is 3 5/16. The bolts are 3/8 diameter. The inside of the smaller opening is ? across and the larger opening is . Unlike S-hooks they can be used multiple times. They are also much easier to install then S-hooks and much stronger. Some cities and parks are requiring their use instead of S-hooks. Use with our swing hangers and chain. The shackle is 212 HBS and the bolt is 176 HBS. The hardness of thebolt in the long needle hardness HRC29 / short needle hardness HRC31.This product should last 2 years in harsh conditions and up to 5 years in optimal conditions. Some conditions may require replacement sooner. Tensile strength 6800 lbs.
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