DIN EN 4128 : 2016 Title: Aerospace series - Bolts, normal hexagonal head, coarse tolerance shank, short thread, in heat resisting nickel base alloy, aluminium IVD coated - Classification: 1250 MPa (at ambient temperature) / 425 °C; German and English version EN 4128:2016 Year: 2016 Publisher: DIN Media GmbH Availability: Within 1-2 working days