DIN EN 4844 : 2022 Title: Aerospace series - Screws, 100° countersunk normal head, Spiral Drive Recess, threaded to head, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425 °C; German and English version EN 4844:2022 Year: 2022 Publisher: DIN Media GmbH Availability: Within 1-2 working days