DIN 65319 : 1987 Title: Aerospace; pan head bolts, close tolerance, with ribbed TORQ-SET (ACR) recess and short-length MJ thread, corrosion-resisting steel; nominal tensile strength 1100 MPa, for temperatures up to 425 °C Year: 1987 Publisher: DIN Media GmbH Availability: Within 1-2 working days