Haiyan New Shengda Fastener Co.Ltd. specializing in the production and development of non-standard high-strength self-drilling screw, stainless self drilling screw,srlf tapping screw mashine screw,dry wall screw,fiber board screw,self-tapping screws,furniture screws and other products. Factory covers an area of 20000 square meters, fixed assets 10,000,000,80 sets of cold forging machine,70 sets of thread rolling machine, an annual production capacity of 40000000, strong technical force, complete productionequipment, product quality and reliable,good mechanical properties, wldely used in machinery, chmical industry, vehicle manufacturing industry.