Carriage Bolts Durable High tensile strength Resistant to rust and corrosion Size Range Grade Standard Diameter (Inch) Diameter (mm) 3/8″ to 1″ 6mm to 24mm 4, 4.8, 5, 5.6, 8.8, 10.9, 12.9 DIN, IS, ISO, ASTM, ANSI, BS Finish / Coating NATURAL, BLACK, ZINC, HOT DIP, CADMIUM, NICKLE Get Quote