The A453 Grade 600 Fasteners at Siddhagiri Metals & Tubes have improved performance not only at room temperature but also at elevated temperatures. ASME SA453 Gr 660 Fasteners offer enhanced properties like high tensile strength, excellent creep strength, etc. ASTM A453 Grade 660 Fasteners have good corrosion resistance when required in various applications. These fasteners are produced in broad ranges, grades, shapes and sizes. Grade 660 Fasteners are used in many industrial applications because they possess many excellent properties.