... steel or medium/high carbon steel, they are mainly used for electrical tower, ect. Rag bolts :Rag bolts are widely used ... in the electrical industries, mainly for electrical poles etc. They were made from low carbon steel ... ,8.8,10.9,12.9widely using forindustris,constructions,electrical,powerspackingsmall boxes,cartons or gunny bags.then on palletsCertificationTUV ...