We are also stainless steel round bars suppliers, which are readily available in stock in various grades and sizes. Stainless steel hex bars are long, hexagon shaped bars that are flexible to use in different manufacturing applications due to their corrosion resistance and high strength. It is used in the manufacturing of nuts, valves, hose ends, fasteners, and bolts. Stainless steel hex bar grades are 301, 302, 304, 310, 316, 321/321H, 347/347H, etc.