Industrial 77421 stainless steel flange bolt is a 2-inch fastener made from A182 F304/304L stainless steel, designed for ASME B16.5 flange connections rated Class 150. This low-carbon 304L material provides corrosion resistance for piping assemblies that require reliable stainless-steel hardware and ASME B16.5 compatibility. Part number 77421 denotes this specific flange bolt used with 2" flanges in standard piping systems.
