Founded in 1995, Wenzhou Shuangyin Hardware Manufacturing Co., Ltd. is a professional fastener manufacturer. With advanced production equipment, Shuangyin Hardware ensure provide with quality products. Shuangyin Hardware products are widely used in motors, machines, electron, and electric appliance etc. Shuangyin Hardware believes quality and technology can make better service to customers. Shuangyin Hardware always take sincere service for you. Shuangyin Hardware main products: hex flange bolt, hex flange nut, hex bolt, clamp, lock washer, plate nut, clip, bearing clip, wave washer, snap spring, tapping clip, flat washer, spring washer etc. hex flange bolt, hex flange nut, clamp, lock washer, clip