DIN EN 4123 : 2018 Title: Aerospace series - Shank nuts, self-locking, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated on thread - Classification: 1 550 MPa (at ambient temperature) / 600 °C; German and English version EN 4123:2018 Year: 2018 Publisher: DIN Media GmbH Availability: Within 1-2 working days