wing nut 1) nodular cast iron 2) suitable for 15/17mm tie rod, high strength 3) size 70/80/ 90/100/110mm 4) manufacturer wing nut1) nodular cast iron2) suitable for 15/17mm tie rod, high strength3) size 70/80/ 90/100/110mm4) manufacturerdifferent type can be done as per your design. wing nut