Indusco hot dipped drop forged galvanized steel screw pin anchor shackle. Meets design requirements of Federal Specification RR-C-271 Type IV A Grade A Class 2. Shackles must always be inspected for wear, distortion and damage before use. If the pin or bow is worn, distorted or damaged, discard the shackle. Do not use round pin shackles in rigging applications. Screw pin shackles should not be used if there will be movement on the pin. Movement could cause the pin to unscrew and drop the load. Always stand clear of loads being lifted. Working load limit is based on a design factor of 5:1. 34000 pounds working load limit. 1-1/2-inches nominal shackle size. 1.63-inches pin diameter. 5-3/4-inches inside length. 2.38-inches inside width at pin. 3.88-inches width at bow. 3-1/2-inches outside diameter of eye.