Ningbo Taida Fastener Manufacture Co., Ltd. is specialized in manufacturing stud bolts, threaded rods, bolts and nuts. Our products include DIN931/DIN933/DIN558 and ASTM A325 hexagon head bolts, DIN934, DIN6923, DIN985 and ASTM A1942H nuts, DIN960, DIN961, DIN6914, DIN7990, DIN7991, DIN912 and DIN7985 screws and DIN975, DIN976 and ASTM A193B7 threaded rods, as well as other AS, GB, ISO9001, BS and JIS standard hardware. Besides, we also make non-standard products. We maintain the highest standards of quality and service by combining experience with the latest manufacturing technology available. We are providing our products for clients in oilfield and other industries. The diameter sizes range from M12 to M100 (from 1/2 inch to 4 inches). The product grades are 4.8, 6.8, 8.8, 10.9, 12.9, B7, L7, B7M, etc. The materials are 35#, 45#, 40Cr, 35CrMoA, 42CrMoA, 25Cr2MoVA, 20MnTiB and various stainless steel materials. Our products are mainly applicable for machinery, construction, bridge, petrochemical and other fields. Therefore, our products sell well throughout the whole country. Moreover, they are also exported to Europe, North America, the Middle East, Japan, etc.