2018UNE-EN 3542:2018 Aerospace series - Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy Ni-PH2801 (Inconel X750) (Endorsed by Asociación Española de Normalización in June of 2018.)
1998UNE-EN 3542:1998 AEROSPACE SERIES. INSERTS, SCREW THREAD, HELICAL COIL, SELF-LOCKING, IN HEAT RESISTING NICKEL BASE ALLOY NI-PH2801 (INCONEL X750).