Forged carbon steel, quenched and tempered, self-colored. Dimensions according to ASME/ANSI B18.15, Type 2, Style A. Manufactured in accordance with A.S.T.M. A489. Rated capacities meet or exceed the requirements of ANSI/ASME 18.15 for Type 2, Style A. https://murphylift.com/machine....ry-eye-bolt-domestic