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prSSH EN 4012:2025

Aerospace series - Nut, bihexagonal, self-locking, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), MoS2 coated - Classification: 1 550 MPa (at ambient temperature)/425 °C

General information

40.20     Feb 9, 2026

40.60    May 11, 2026

DPS

DPS/KT 256

European Norm

49.030.30  

Scope

This document specifies the characteristics of self-locking bihexagonal nuts in NI-PH2601, MoS2 coated, for aerospace applications.
Classification: 1 550 MPa /425 °C .

Life cycle

PREVIOUSLY

PUBLISHED
SSH EN 4012:2004

NOW

IN_DEVELOPMENT
prSSH EN 4012:2025
40.20 DIS ballot initiated: 12 weeks
Feb 9, 2026

Related project

Adopted from EN 4012:2025 IDENTICAL

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