Hastelloy c22 Nuts are manufactured and exported by Instinox. We manufacture elbow fittings, connectors, expansion joint coupling fittings, push-ins, nipple, plug, gland, bulkhead fittings and adapters with more custom made nuts. Instinox understands the importance of properties of the alloy in the applications, hence each of our products are tested and verified against heat, pressure and corrosion. We not only have our personal laboratory tests but international testing authorities, too endorse our products. Instinox is breaking through the conventional tubing and piping suppliers by our customer oriented delivery and online sales service. All our products are genuine and come directly from our own manufacturing and storage unit, saving costs and middle-men hassles. So one call or email, and we are devoted to your steel needs.