BS EN 4635:2009 Aerospace series - Screws, 100 ° countersunk head, six lobes recess, short thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718) - Classification: 1270 MPa (at ambient temperature) / 650 °C
This standard specifies the characteristics of screws with 100° countersunk head, with six lobe recess, short
thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), for aerospace applications.
BS EN 4635:2009 Referenced Document
EN 2424 Aerospace series - Marking of aerospace products
EN 2516 Aerospace series - Passivation of corrosion resisting steels and decontamination of nickel or cobalt base alloys*, 2023-12-20 Update
EN 2583 Aerospace series - Bolts@ MJ threads@ in heat resisting nickel base alloy NI-PH2601 (Inconel 718) - Classification: 1 275 MPa (at ambient temperature)/650°C - Technical specification*, 2019-05-01 Update
EN 3911 Aerospace series - Six lobe recess - Geometrical definition*, 2024-04-19 Update
ISO 3353-1 Aerospace - Lead and runout threads - Part 1: Rolled external threads*, 2020-11-30 Update
ISO 5855-2 Aerospace - MJ threads - Part 2: Limit dimensions for bolts and nuts
ISO 7913 Aerospace - Bolts and screws, metric - Tolerances of form and position
BS EN 4635:2009 history
2009BS EN 4635:2009 Aerospace series - Screws, 100 ° countersunk head, six lobes recess, short thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718) - Classification: 1270 MPa (at ambient temperature) / 650 °C