Bolts and Screws, Steel UNS K14675 Tensile Strength 195 ksi Fatigue and Stress-Rupture Rated Procurement Specification
- Aerospace Standard
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 properaties are covered: AS7459 195 ksi minimum ultimate tensile strength at room temperature; 145 ksi minimum ultimate tensile strength at 900 degrees F; 105 ksi stress rupture strength at 900 degrees F for 100 hours; 100 ksi tension to 10 ksi tension fatigue at room temperature; Protective treatment to be specificed on part drawing; AS7459-1 AS7459 part plated per AMS 2416, nickel-cadmium diffused plating; AS7495-2 195 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; AS7495-3 AS7495-2 part plated per AMS 2416, nickel-cadmium diffused plating.
Primarily for aerospace propulsion system applications where high strength at temperatures up to approximately 900 degrees F is required and the part is protected against corrosion.
Data Sets - Support Documents
The SAE E-25 General Standards for Aerospace & Propulsion Systems committee addresses aerospace propulsion systems and components. These systems and components include bolts, screws, nuts, washers, studs, rivets, pins, covers, O-rings, brackets, plugs and associated procurement requirements, as well as solid film lubricants and design specifications for screw threads and fastener assembly requirements.