NINGBO BEILUN HUASHEN SCREW FACTORY - Zhejiang, China

We specilize in high strength internal hexagon screws with all kinds of alloy steels(Japan SCM435).The screws are made strictly according to National standard as well as American standard/British standard/Germany standard,and the specifications are M3-M25,5mm-45mm in length. Our annual output can come up to more than 70million pieces.We mainly supply the products to the manufacturers engaging in sprockets,awl case and axle sleeve etc.