This document covers bolts and screws made from a corrosion and heat resistant, precipitation hardenable iron base alloy of the type identified under the Unified Numbering System as UNS S66286. The following specification designations and their properties are covered: AS7477: 130 ksi minimum ultimate tensile strength at room temperature 70 ksi stress-rupture strength at 1200 °F; and AS7477-1: Inactive for Design; AS7477-2: 130 ksi minimum ultimate tensile strength at room temperature 78 ksi minimum ultimate shear strength at room temperature. Classification: 130 ksi minimum tensile strength at room temperature 1200 °F maximum test temperature of parts. Primarily for aerospace propulsion system applications where a good combination of fatigue resistance, tensile strength, shear strength, and resistance to relaxation at elevated temperatures is required.
1970SAE AS7477J-2023 Bolts and Screws, Steel, UNS S66286 Tensile Strength 130 ksi, Procurement Specification
2020SAE AS7477H-2020 Bolts and Screws, Steel, UNS S66286 Tensile Strength 130 ksi, Procurement Specification
2017SAE AS7477G-2017 Bolts and Screws, Steel, UNS S66286 Tensile Strength 130 ksi, Procurement Specification
2016SAE AS7477F-2016 Bolts and Screws@ Steel@ UNS S66286 Tensile Strength 130 ksi@ Procurement Specification
2011SAE AS7477E-2011 Bolts and Screws, Steel, UNS S66286 Tensile Strength 130 ksi, Procurement Specification
2004SAE AS7477D-2004 Bolts and Screws, Steel, UNS S66286 Tensile Strength 130 ksi, Procurement Specification
2000SAE AS7477D-2000 Bolts and Screws, Steel, UNS S66286 Tensile Strength 130 ksi, Procurement Specification FSC 5306 [Superseded: SAE AMS 7477D]
1998SAE AS7477C-1998 Bolts and Screws@ Steel@ UNS S66286 Tensile Strength 130 ksi@ Procurement Specification (FSC 5306)
1995SAE AS7477B-1995 Bolts and Screws, Steel, UNS S66286 Tensile Strength 130 ksi, Procurement Specification FSC 5306 [Superseded: SAE AMS 7477D]
1995SAE AS7477A-1995 BOLTS AND SCREWS, STEEL, CORROSION AND HEAT RESISTANT 1800 °F Solution Heat Treated, Aged Before Roll Threaded Procurement Specification For
1990SAE AS7477-1990 BOLTS AND SCREWS, STEEL, CORROSION AND HEAT RESISTANT Upset Headed, Heat Treated, Roll Threaded 1800°F Solution and Precipitation Heat Treated