DIN EN 4493 : 2008 Title: Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH1801 (NI-P96HT, Nimonic 90), silver plated; German and English version EN 4493:2008 Year: 2008 Publisher: DIN Media GmbH Availability: Within 1-2 working days