Type This procurement specification covers bolts and screws made from a low alloy, heat resistant steel of the type identified under the Unified Numbering System as UNS K14675, having UNJ profile threads. The following specification designations and their properties are covered

AS7459 195 ksi minimum ultimate tensile strength at room temperature

145 ksi minimum ultimate tensile strength at 900 °F

105 ksi stress rupture strength at 900 °F for 100 hours

100 ksi tension to 10 ksi tension fatigue at room temperature Protective treatment to be specified on part drawing

AS7459-1 AS7459 part plated per AMS2416, nickel-cadmium diffused plating

AS7459-2 195 ksi minimum ultimate tensile strength at room temperature 117 ksi minimum ultimate shear strength at room temperature Protective treatment to be specified on part drawing

AS7459-3 AS7459-2 part plated per AMS2416, nickel-cadmium diffused plating

Application

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.

Safety - Hazardous

Materials While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.