DIN EN 4509 : 2007 Title: Aerospace series - Screws, 100° countersunk normal head, offset cruciform recess, threaded to head, in titanium alloy, anodized, with aluminium pigmented coating, metric series - Classification: 1100 MPa (at ambient temperature) / 315 °C; German and English version EN 4509:2006 Year: 2007 Publisher: DIN Media GmbH Availability: Within 1-2 working days