Structural / HSFG Bolts Durable High tensile strength Resistant to rust and corrosion Size Range Grade Standard Diameter (Inch) Diameter (mm) 1/2″ To 1-1/2″ 12mm To 36mm 8.8, 10.9, 12.9 DIN, IS, ISO, ASTM, ANSI, BS Finish / Coating NATURAL, BLACK, ZINC, HOT DIP, CADMIUM, NICKLE Get Quote