Hi-Flow brass square head plug pipe fittings are made from high quality UNS CA-360 brass bar.  Typical application:  grease, fuels, refrigeration, instrumentation and hydraulic systems.  Pressure and Vibration: Operating pressure up to 1200 psi and fair resistance to vibration.  Used With:  brass, bronze and iron pipe.  Advantages:  dryseal pipe threads.  Large range of sizes and configurations.  Conformance:  Meets ASA, ASME and SAE specifications and standards.