Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C

This document specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications.
Classification: 1 100 MPa /650 °C .

Luft- und Raumfahrt - Einnietmuttern, selbstsichernd, verzahnt, aus hochwarmfestem Stahl FE-PA2601 (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C

No Scope available

Série aérospatiale - Écrous à sertir, dentelés, à freinage interne, en acier résistant à chaud FE-PA2601 (A286) - Classification : 1 100 MPa (à température ambiante)/650 °C

Le présent document spécifie les caractéristiques des écrous à sertir, dentelés, à freinage interne, en FE-PA2601, pour les applications aérospatiales.
Classification : 1 100 MPa /650 °C.

Aeronavtika - Sidrne/utrdilne matice, samoblokirne, nazobčane, iz toplotnoodpornega jekla FE-PA2601 (A286) - Klasifikacija: 1100 MPa (pri okoljski temperaturi)/650 °C

General Information

Status
Published
Public Enquiry End Date
14-Sep-2022
Publication Date
07-Jan-2026
ICS
49.025.10 - Steels
 
49.030.30 - Nuts
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-Jan-2026
Due Date
12-Mar-2026
Completion Date
08-Jan-2026
Ref Project
EN 3014:2025 - Aerospace series - Shank nut, self-locking, serrated, in heat resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C

Relations

Revised
SIST EN 3014:2015 - Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C
Effective Date
18-Jan-2023

Overview

EN 3014 (prEN 3014:2022 - intended to supersede EN 3014:2015) is a CEN aerospace standard that specifies the characteristics of self‑locking, serrated shank nuts manufactured from heat‑resisting steel FE‑PA2601 (A286). Classification for these nuts is 1 100 MPa (ambient) / 650 °C, making them suitable for aerospace components that require high strength and elevated temperature resistance. The standard covers configuration, dimensions, materials, marking, designation, technical specification and installation requirements specific to serrated shank nuts.

Key topics and requirements

  • Material: Shank nuts shall be made from heat‑resisting steel FE‑PA2601 (A286) as referenced to EN 2399 or EN 3639.
  • Strength and temperature class: Classification given as 1 100 MPa at ambient temperature with maximum test temperature up to 650 °C.
  • Geometry and tolerances: Detailed configuration, dimensions, tolerances and masses (in millimetres) are defined; MJ thread limits are aligned with ISO 5855‑2.
  • Self‑locking serration: Forming out‑of‑round in the self‑locking zone and serration geometry are specified to achieve locking performance; tooling marks in the formed area are permissible.
  • Thread surface and edges: Thread finishes follow normal manufacturing methods; sharp edges to be removed in the 0.1–0.4 mm range.
  • Marking and designation: Marking follows EN 2424 (style A) and designation rules are provided for traceability and procurement.
  • Installation: Installation procedures and hole design are referenced (EN 3064 and EN 3065); the standard highlights the need to consider notch sensitivity of the host material.
  • Normative alignment: Technical specifications and tests reference EN 3004 and related aerospace fastener standards.

Applications and who uses EN 3014

  • Applications: Use where a high‑strength, heat‑resistant self‑locking nut is required - e.g., aerospace structural assemblies and components exposed to elevated temperatures up to 650 °C.
  • Users: Aerospace fastener manufacturers, design engineers, structural engineers, procurement and quality assurance teams, maintenance and repair organizations (MROs), and test laboratories.
  • Benefits: Ensures interchangeability, consistent mechanical performance, traceability and safe installation practice for serrated shank nuts in critical aerospace applications.

Related standards

  • EN 2399 (FE‑PA2601 material)
  • EN 3004 (nuts, technical specification)
  • EN 3064 (installation procedure)
  • EN 3065 (installation holes design)
  • EN 2424 (marking)
  • EN 3639, ISO 5855‑2

Keywords: EN 3014, shank nuts, self‑locking serrated nuts, FE‑PA2601, A286, aerospace standard, heat resisting steel, 1100 MPa, 650 °C, fastener installation.

Frequently Asked Questions

SIST EN 3014:2026 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C". This standard covers: This document specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications. Classification: 1 100 MPa /650 °C .

This document specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications. Classification: 1 100 MPa /650 °C .

SIST EN 3014:2026 is classified under the following ICS (International Classification for Standards) categories: 49.025.10 - Steels; 49.030.30 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 3014:2026 has the following relationships with other standards: It is inter standard links to SIST EN 3014:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase SIST EN 3014:2026 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 SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-februar-2026
Aeronavtika - Sidrne/utrdilne matice, samoblokirne, nazobčane, iz
toplotnoodpornega jekla FE-PA2601 (A286) - Klasifikacija: 1100 MPa (pri okoljski
temperaturi)/650 °C
Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601
(A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C
Luft- und Raumfahrt - Einnietmuttern, selbstsichernd, verzahnt, aus hochwarmfestem
Stahl FE-PA2601 (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C
Série aérospatiale - Écrous à sertir, dentelés, à freinage interne, en acier résistant à
chaud FE-PA2601 (A286) - Classification : 1 100 MPa (à température ambiante)/650 °C
Ta slovenski standard je istoveten z: EN 3014:2025
ICS:
49.025.10 Jekla Steels
49.030.30 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3014
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2025
EUROPÄISCHE NORM
ICS 49.030.30 Supersedes EN 3014:2015
English Version
Aerospace series - Shank nut, self-locking, serrated, in heat
resisting steel FE-PA2601 (A286) - Classification: 1 100
MPa (at ambient temperature) / 650 °C
Série aérospatiale - Écrous à sertir, dentelés, à freinage Luft- und Raumfahrt - Einnietmuttern, selbstsichernd,
interne, en acier résistant à chaud FE-PA2601 (A286) - verzahnt, aus hochwarmfestem Stahl FE-PA2601
Classification : 1 100 MPa (à température (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) /
ambiante)/650 °C 650 °C
This European Standard was approved by CEN on 5 October 2025.

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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3014:2025 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 Materials . 4
5 Designation . 7
6 Marking . 7
7 Technical specification . 7
8 Installation . 7
Bibliography . 8

European foreword
This document (EN 3014:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2026, and conflicting national standards shall be
with
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...