HAIYAN SUN’S JIANXIN FASTENERS CO., LTD. is a private enterprise which built in 1997.It is located in Haiyan Economic and Technology Developing Zone which lies to the east coast of Hangzhou Bay. we have 45 cold forming machines and 11 punch beds and are enabled to produce screws and bolts according to BS,ANSI,DIN,JIS and other Non-standard fasteners according to our customer’s samples or drawings. Such as M2----M45,1/8”----1-1/2”of Nuts and M4----M45,1/8”----1-1/2” of Bolts . we also produce anchor bolts ,U bolts etc. With the quality---centered rule, we offer high---quality products at reasonable price and the first-class after-sale service .