This procurement specification covers bolts, screws and studs made from a work-strengthened corrosion and heat resistant, age Hardenable nickel base alloy of the type identified under the Unified Numbering System as UNS N07718. The following properties are covered: 220 ksi minimum ultimate tensile strength at room temperature 180 ksi minimum ultimate tensile strength at 900 °F 114 ksi tension to 11.4 ksi tension fatigue at room temperature