This specification covers metric bolts and screws made from a corrosion and heat resistant, nickel-base alloy of the type identified under the Unified Numbering System as UNS N07001. The following specification designations and their properties are covered: MA3378 1210 MPa minimum ultimate tensile strength at room temperature 520 MPa stress-rupture strength at 730 °C MA3378-1 1210 MPa minimum ultimate tensile strength at room temperature 726 MPa minimum ultimate shear strength at room temperature