We are offering a wide range of duplex steel fasteners. Our experts make use of advanced engineering techniques and modern machines, so as to offer a quality approved range of our products. Moreover, these facilities allow us to bring forth our range with better precision, durability and seamless finish. Specifications: standards: astm asme sa 790 grades: uns no. S 31803, s 32205, s 32550, s 32750, s 327 form: bolts,