Haiyan Chunhai Fastener Co.,Ltd is located in Haiyan County, Zhejiang Province, with very convenient waterway and land traffic, about two hours to Shanghai port, one hour to Ningbo port. We are a professional screws manufacturer and supplier in China. We produce screws for self-drilling screws(hex washer head, hex flange head, wafer head, flat head, pan head), drywall, chipboard, tapping, concrete, machine and special-use. Since our establishment in 2007,we've maintained a commitment to cutting-edge manufacturing innovation and uncompromising product quality.