Hex Bolts, Material : Carbon Steel

We specialized in manufacturing the various of fasteners especially the din 931 class8.8 hex bolts! with the strength of high hardness,high wearing and corrosion resistance,it has become one of the most popular kinds of fasteners in the worldwide market. We can do it according to the customers` requirements,such as the head marking or the surface treatment:zinc plated,black finished,coated(blue),hot dip