Founded in 1987,Haiyan Dazhong Nut Co., Ltd. is one of the most professional and biggest manufacture of standard fastermers,which occupies 23,000 square meters, with over 150 sets of fastener machinery and annual output value exceeding RMB10 million. The main items are hex nut,threaded rods,ground screw,casting expansion pipe,etc.All standards are avilable,such as DIN, ANSI, ISO,BS,etc.also can produce non-standard fasterners according to your requirement,of course. Located in Haiyan,the hometown of fasterners in China,our quality and competive price can be believed in.Moreover,you should NEVER worry about the delievery time and transportation. All parterns,both home and abroad are warmly welcomed.We hope to establish long-term bussiness relationship and creat a bright future with all of you.