This procurement specification covers aircraft quality bolts and screws made from a low alloy, heat resistant steel of the type identified under the Unified Numbering System as UNS K14675. The following specification designations and their properities are covered: AS7455 140 000 to 195 000 psi ultimate tensile strength at room temperture; AS7455-1 140 000 to 195 000 psi ultimate tensile strength at room temperature, nickel-cadmium plated. Primarily for aerospace propulsion system applications where high strength at temperatures up to approximately 900 °F is required and the part is protected against corrosion.