DIN EN 3326 : 2008 Title: Aerospace series - Bolts, D-head, close tolerance, medium thread length, in heat resisting nickel base alloy NI-PH2601 (INCO 718) - Classification: 1275 MPa/650 °C, unplated; German and English version EN 3326:2007 Year: 2008 Publisher: DIN Media GmbH Availability: Within 1-2 working days