Ropeblock’s standard turnbuckles are engineered for high-performance tensioning and adjustment, supporting working loads from 1 up to 160 metric tons. Primarily utilized for lifting, general rigging, and lashing applications, these components are manufactured with trapezoid threads generally in accordance with the NEN 3305 standard. Designed with a robust 5:1 Factor of Safety (Minimum Ultimate Strength = 5 x WLL), they offer a reliable solution for maintaining tension in demanding industrial and maritime environments. The portfolio provides extreme flexibility through various end-fitting combinations, including jaws, oblong eyes, and stud eyes, all finished with a standard blue primer (RAL 5017) or optional hot-dip galvanizing.