Haiyan Guangda Hardware Co., Ltd. was established in 1992, covering a land area of 7,600 square meters, with total investment of RMB 16million Yuan. As a manufacturer of fasteners, we design, manufacture and sell many kinds of fasteners according to ANSI, DIN, BS, UNI and ISO standards. We mainly produce hex bolts, hex nuts, carriage bolts, T-bolts, U-bolts, machine screws, threaded rods and non-standard fasteners.