Ningbo ZhongJiang High Strength Bolts Co.,Ltd. is one of the leading manufactures in the line of fastners in China. We can produce various standards of fasteners such as hex head bolts, screws, hex socket cap cheese, nuts etc. Our factory is well-equipped with advanced machines and quality control factilities introducing from Japan, USA. The products are well established in overseas market and enjoys a high reputation for wide selection of standards, grades and surface treatments. Besides DIN, BS, IFI, ISO standards, nonstandard products are also manufactured according to customers requirements. Furthermore, The factory has been approved by ISO9002. As for the other details,you can visit our web site or contact with me. In addition, it is our practice to quote the competitive price to clients upon receipt of their concrete enquiry, which should include the contents of standard, size, quantity, grade, surface treatment, material and drawings.