EN 4013:2024
(Main)Aerospace series - Shank nut, self-locking, in heat resisting nickel base alloy NI PH2601 (Inconel 718), silver plated - Classification: 1 550 MPa (at ambient temperature)/600 °C
Aerospace series - Shank nut, self-locking, in heat resisting nickel base alloy NI PH2601 (Inconel 718), silver plated - Classification: 1 550 MPa (at ambient temperature)/600 °C
This document specifies the characteristics of self-locking, shank nuts, in NI-PH2601, silver plated, for aerospace applications.
Classification: 1 550 MPa /600 °C .
Luft- und Raumfahrt - Einnietmutter, selbstsichernd, aus hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel 718), versilbert - Klasse: 1 550 MPa (bei Raumtemperatur) / 600 °C
Dieses Dokument legt die Eigenschaften von selbstsichernden Einnietmuttern aus NI-PH2601, versilbert, für Anwendungen in der Luft- und Raumfahrt fest.
Klasse: 1 550 MPa /600 °C .
Série aérospatiale - Écrou à sertir, à freinage interne, en alliage résistant à chaud base nickel NI-PH2601 (Inconel 718), argenté - Classification : 1 550 MPa (à température ambiante)/600 °C
Le présent document spécifie les caractéristiques des écrous à sertir, à freinage interne, en NI-PH2601, argentés, pour les applications aérospatiales.
Classification : 1 550 MPa /600 °C.
Aeronavtika - Zakovičena matica, samozapiralna, iz toplotno odporne zlitine na nikljevi osnovi NI-PH2601 (Inconel 718), posrebrena - Klasifikacija: 1550 MPa (pri temperaturi okolice)/600 °C
Ta dokument določa lastnosti posrebrenih, samozapiralnih zakovičenih matic iz zlitine NI-PH2601 za uporabo v aeronavtiki.
Klasifikacija: 1550 Mpa 1/600 °C 2.
General Information
Relations
Overview
EN 4013:2024 specifies the characteristics of self-locking shank nuts manufactured from heat-resisting nickel‑base alloy NI‑PH2601 (Inconel 718) with electrolytic silver plating for aerospace use. The standard applies to nuts classified 1 550 MPa (ambient)/600 °C and replaces EN 4013:2004. It defines configuration, dimensions, material and surface treatment requirements, marking and related technical specification references to ensure consistent, high‑temperature performance of aerospace fasteners.
Key topics and technical requirements
- Scope & classification: Shank, self‑locking nuts in NI‑PH2601 (Inconel 718); Classification 1 550 MPa (minimum tensile stress at ambient) and maximum test temperature 600 °C.
- Configuration & dimensions: Geometry, tolerances and masses are defined (see Figure 1 / Table 1 of the standard). Dimensions are expressed in millimetres and apply after silver plating. Typical MJ thread sizes covered include MJ5–MJ8 per ISO 5855‑2 conventions.
- Material: Base material shall comply with EN 2952 (NI‑PH2601 - solution treated and cold worked bar for forged fasteners).
- Surface treatment / plating: Electrolytic silver plating per EN 2786 with specified thicknesses:
- External surfaces: 5 µm to 15 µm
- Thread (≥ MJ6): ≥ 5 µm measured at pitch diameter
- Thread MJ5: complete coverage required (no thickness min)
- Self‑locking feature: Achieved by forming an out‑of‑round zone in the locking area (tooling marks permissible).
- Marking & designation: Marking per EN 2424, style A; designation and technical specification referencing EN 4047.
Applications and users
- Applications: Intended for aerospace and defence fastener use where high strength and heat resistance are required - for example, components exposed to elevated temperatures in propulsion and airframe hot zones. The combination of Inconel 718 and silver plating targets corrosion resistance, high tensile strength and conductivity/compatibility with mating parts.
- Primary users:
- Aerospace fastener manufacturers and forgings suppliers
- Aircraft and engine design engineers specifying high‑temperature fasteners
- Procurement, quality assurance and regulatory/certification teams
- Maintenance, repair and overhaul (MRO) organizations
Related standards
- EN 2952 - NI‑PH2601 material specification
- EN 2786 - Electrolytic silver plating of fasteners
- EN 4047 - Technical specification for related nuts
- EN 2424 - Marking of aerospace products
- ISO 5855‑2 - MJ thread limit dimensions (bolts and nuts)
EN 4013:2024 ensures consistent production, testing and traceability of self‑locking shank nuts made from NI‑PH2601 (Inconel 718) for high‑temperature aerospace applications, helping manufacturers and engineers meet performance and regulatory expectations.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2024
Nadomešča:
SIST EN 4013:2005
Aeronavtika - Zakovičena matica, samozapiralna, iz toplotno odporne zlitine na
nikljevi osnovi NI-PH2601 (Inconel 718), posrebrena - Klasifikacija: 1550 MPa (pri
temperaturi okolice)/600 °C
Aerospace series - Shank nut, self-locking, in heat resisting nickel base alloy NI PH2601
(Inconel 718), silver plated - Classification: 1 550 MPa (at ambient temperature)/600 °C
Luft- und Raumfahrt - Einnietmutter, selbstsichernd, aus hochwarmfester
Nickelbasislegierung NI-PH2601 (Inconel 718), versilbert - Klasse: 1 550 MPa (bei
Raumtemperatur) / 600 °C
Série aérospatiale - Écrou à sertir, à freinage interne, en alliage résistant à chaud base
nickel NI-PH2601 (Inconel 718), argenté - Classification : 1 550 MPa (à température
ambiante)/600 °C
Ta slovenski standard je istoveten z: EN 4013:2024
ICS:
49.030.30 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 4013
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2024
EUROPÄISCHE NORM
ICS 49.030.30 Supersedes EN 4013:2004
English Version
Aerospace series - Shank nut, self-locking, in heat resisting
nickel base alloy NI PH2601 (Inconel 718), silver plated -
Classification: 1 550 MPa (at ambient temperature)/600
°C
Série aérospatiale - Écrou à sertir, à freinage interne, Luft- und Raumfahrt - Einnietmutter, selbstsichernd,
en alliage résistant à chaud base nickel NI-PH2601 aus hochwarmfester Nickelbasislegierung NI-PH2601
(Inconel 718), argenté - Classification : 1 550 MPa (à (Inconel 718), versilbert - Klasse: 1 550 MPa (bei
température ambiante)/600 °C Raumtemperatur) / 600 °C
This European Standard was approved by CEN on 19 May 2024.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4013:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 4
4.1 Configuration – Dimensions – Tolerances – Masses . 4
4.2 Material . 4
4.3 Surface treatment . 5
5 Designation . 6
6 Marking . 6
7 Technical specification .
...
Frequently Asked Questions
EN 4013:2024 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Shank nut, self-locking, in heat resisting nickel base alloy NI PH2601 (Inconel 718), silver plated - Classification: 1 550 MPa (at ambient temperature)/600 °C". This standard covers: This document specifies the characteristics of self-locking, shank nuts, in NI-PH2601, silver plated, for aerospace applications. Classification: 1 550 MPa /600 °C .
This document specifies the characteristics of self-locking, shank nuts, in NI-PH2601, silver plated, for aerospace applications. Classification: 1 550 MPa /600 °C .
EN 4013:2024 is classified under the following ICS (International Classification for Standards) categories: 49.030.30 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 4013:2024 has the following relationships with other standards: It is inter standard links to EN 4013:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 4013:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
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