Haiyan Haixin Fastener Co.,Ltd located in North Bank of Hangzhou Bay,Haiyan county,jiaxing,zhejiang. Where is one of the China's largest fastener market. Our factory specializes in producing different kinds of thread rod ,U-bolts ,nuts ,bolts,wsher etc. The product can be produced according to ANSI and DIN standards. Strength is 4.8, 8.8, 10.9 and B7. Finished with plain, zinc plated, black and hot-dip galvanizing.our company has been committed to providing high-quality products and excellent services worldwide,look forward to cooperating with you.