Bigboltnut are a manufacturer of Grade B8M C1 and C2 Fasteners used for Alloy and Stainless Steel Bolting Materials for High Temperature or High-Pressure Service in petrochemical & chemical Construction Applications. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
