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. Type The following specification designations and their properties are covered: AS4506 160 ksi minimum ultimate tensile strength at room temperature AS4506-1 160 ksi minimum ultimate tensile strength at room temperature 95 ksi minimum ultimate shear strength at room temperature Classification 160 ksi minimum tensile strength at room temperature.