B8 Class 2 All Thread Rod
ASTM A193/A320 Grade B8 all thread rod is dual certified. The A193 specification covers fasteners intended for high temperature and high pressure applications, while A320 covers low temperature applications. Both grades are made from AISI 304 stainless steel and are tested to meet ASTM A193/A320. Dimensional specifications are governed by ASME B18.31.3. A193/A320 B8 all thread rod having diameters above 1" are most common 8UN (8 threads per inch). Non-magnetic, 304 stainless has good corrosion resistance. For use in pressure vessels, valves, flanges, or other special purpose applications.