Standard

BS 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

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This document specifies the characteristics of self-locking bihexagonal nuts in NI-PH2601, MoS₂ coated, for aerospace applications.

Classification: 1 550 MPa1/425 °C2.

Product Details

Descriptors

Designations

Locknuts

Threaded fasteners

Heat-resistant materials

Surface treatment

Nuts

Fasteners

Sulfides

Nickel alloys

Aircraft components

Internal-thread fasteners

Marking

Coatings

Bihexagonal-head fasteners

Dimensions

Molybdenum inorganic compounds

ICS Codes

49.030.30 Nuts

Committee

ACE/12

International relationships

Identical to:

EN 4012

ISBN

978 0 539 27686 2

Publisher

BSI