Profile: Yushung Metal Products Co., Ltd. specializes in providing fasteners for marine, electronic, electric and mechanical industries. Our fasteners include brass, silicon, phosphor and aluminum bronze fasteners. We offer nuts, bolts and wood, machine & tapping screws. Self-tapping or thread-forming screws feature threads designed to tap their holes. Our bolts are of different types such as hex cap, carriage, lag, square head, and penta head bolts.