Buy Nimonic 80a Fasteners from Boltport Fasteners, a reliable Manufacturer & Supplier of High Quality Nimonic 80a Bolts, Screws, Stud Bolts, Threaded Rods, Nuts, Washers, Springs, Pins & Custom Bolts. We produce Nimonic Alloy 80a Fasteners by means of hot forging or directly machining from bar stock. Nimonic 80a is a precipitation hardening nickel-chromium super alloy strengthened by addition of carbon, aluminium and titanium. Nimonic 80a is similar to Nimonic Alloy 75 with good mechanical properties at higher temperature. Nimonic 80a fasteners are widely used for bolting gas turbine components, automobile exhaust valves and nuclear boiler parts.