Campbell 419-S Series Screw pin anchor shackle has a working load limit of 680 kg that has been permanently indicated on it. Shackle with a nominal size of 5/16" is made of forged carbon steel that offers durability..Working load limit: 680 kg.Working load limit permanently shown on every shackle.Meets the design requirements of the following specification: Federal Specification RR-C-271, Type IVA, Grade A, Class 2.Nominal size: 5/16-inch.Design factor: 6 to 1.Type: Series 419-S, screw pin.Shackles working load limit: 680 kg.Meets or exceeds all requirements of ASME B30.26.Shackles nominal size: 5/16-inch.Campbell Series 419-S Screw Pin Anchor Shackle permanently displays working load limit on every shackle.
