Nuts, self-locking, with maximum operating temperature less than or equal to 425°C. Test methods|Test equipment, Loading, Torque, Aircraft components, Axial stress, Threaded fasteners, Flatness (surface), Vibration-resistant fasteners, Vibration testing, Inspection, Washers, Dimensions, Diameter, Mechanical testing, Hardness testing, MJ threads, Embrittlement, Heating tests, Mandrels, Locknuts, Temperature, Mechanical behaviour of materials, Dimensional tolerances, Testing conditions, Nuts, Stress, Fasteners