Profile: Sri Ramanuja Industrial Services manufactures & exports a range of industrial fasteners like nuts, bolts, screws and studs. Our product includes carbon steel bolts, carbon steel nuts, hex head bolts, socket head bolts, steel bolts, flange bolts, socket screws and steel studs. our screws include hexagonal screws, hexagonal socket, head screws, square head screws and stainless steel screws. our products are suitable for high temperature operation as well as cryogenic application.