Founded in 2000,  Shanghai Highlock Hardware Co.Ltd, is a professional manufacturer and exporter of fastener in China. Which has got the ISO 9001-2000 Quality System Certification
         The firm  includes two Subsidiary, One is specializes in producing Bolt and Screw ( grade 4.8 8.8, 10.9), and the other  focus on manufacturing all kinds of washer. 
Meanwhile, we also supply other fastener , just like Nut, Thread Rod, and  stainless steel products.
         Our Company  takes up total area of 42,000 square meters and  more than 260 employees. Which owns over 60 sets of producing machines and other special testing
equipments. At present, the month production capacity is about  1000 MT of BOLT and SCREW, also 1000MT of WASHER.
         Over 15 years-experience in the line of fastener , our products has successful been into the worldwide market  with excellent quality and competitive price.  
         Looking forward to your detailed inquiry.