... your requirement! the nut can make as your requirement! We supply the bolts, screws, nuts, rods, studs, washers and many other hardware ... products, made of carbon steel, alloy and stainless steel, aluminum, brass or other special materials. For finishing, we provide black oxide, zinc ... , 8.8, 10.9, 12.9, A2-50, A2-70 and A4-70etc standard and non standard nut