Suzhou Anzhikou Hardware Technology Co. Ltd. is a famous China Waterproof Screws Manufacturers and custom self sealing screws factory. our company's existing factory covers an area of 2000 square meters and has successively introduced more than 200 sets of precision equipment from Taiwan and Japan, including a complete set of fastener production equipment such as cold heading, thread rolling wire, CNC and anti-loosing, etc., which can produce miniature screws with an external diameter of 0.6mm/length of 0.6 mm, and the annual production capacity of standard parts and wholesale self sealing screws is up to 2,000 square meters.