Indusco self-colored drop forged galvanized steel stub end turnbuckle. Meets design and performance requirements of ASTM F 1145 Class A. Reference American Welding Society for proper welding procedures. Turnbuckles must always be inspected for wear, distortion, cracks and damage before use. If worn, distorted or damaged, discard and replace. Turnbuckles are not designed for angular loading, so the loading must be applied in a straight line. Working load limit is based on a design factor of 5:1. 20-inches closed length. 1-1/4-inches threaded diameter by 6-inches take-up.