DIN EN 3303 : 1997 Title: Aerospace series - Screws, cap head, hexagon socket, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature)/235 °C; German version EN 3303:1997 Year: 1997 Publisher: DIN Media GmbH Availability: Within 1-2 working days