Aerospace series - Bolts, normal hexagonal head, relieved shank, long thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated - Classification: 1275 MPa/650 °C

This standard specifies the characteristics of bolts normal hexagonal head with relieved shank and long thread in heat resisting nickel base alloy NI-PH2601 (Inconel 718), for aerospace applications.
Classification: 1 275 MPa  ) / 650 °C  )

Luft- und Raumfahrt - Sechskantschrauben, Dünnschaft, langes Gewinde, aus hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel 718), versilbert - Klasse: 1275 MPa/650 °C

Diese Norm legt die Eigenschaften von Sechskantschrauben mit Dünnschaft und langem Gewinde aus
hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel 718) für die Anwendung in der Luft- und Raumfahrt
fest.
Klasse: 1 275 MPa1)/650 °C2)

Série aérospatiale - Vis à tête hexagonale normale, fût dégagé, filetage long, en alliage base nickel, résistant à chaud NI-PH2601 (Inconel 718), argentées - Classification: 1275 MPa/650 °C

Aeronavtika - Sorniki, normalna šestroba glava, tanko steblo, dolg navoj, iz toplotnoodporne zlitine na nikljevi osnovi NI-PH2601 (Inconel 718), posrebreni - Klasifikacija: 1275 MPa/650 °C

General Information

Status
Published
Publication Date
20-Aug-2009
ICS
49.030.20 - Bolts, screws, studs
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
13-Jul-2009
Due Date
17-Sep-2009
Completion Date
21-Aug-2009
Ref Project
EN 3613:2009 - Aerospace series - Bolts, normal hexagonal head, relieved shank, long thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated - Classification: 1 275 MPa/650 °C

Relations

Revised
oSIST prEN 3613:2025 - Aerospace series - Bolts, normal hexagonal head, relieved shank, long thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated - Classification: 1 275 MPa/650 °C
Effective Date
12-Feb-2025

Overview - EN 3613:2009 (Aerospace bolts, Inconel 718)

EN 3613:2009 is a CEN aerospace standard that defines the characteristics of normal hexagonal head bolts with relieved shank and long thread manufactured from the heat‑resisting nickel‑base alloy NI‑PH2601 (Inconel 718) and silver plated. The standard is intended for aerospace use and classifies these bolts as 1 275 MPa / 650 °C (minimum tensile strength at ambient temperature / maximum test temperature). EN 3613 specifies configuration, dimensions, tolerances, surface finish, material reference and plating requirements for high‑temperature aerospace fasteners.

Key topics and technical requirements

  • Bolt configuration: Normal hexagonal head, relieved (thin) shank, long thread; rolled threads where specified.
  • Material: Heat‑resisting nickel‑base alloy NI‑PH2601 (Inconel 718) per EN 2952.
  • Mechanical classification: 1 275 MPa (minimum tensile strength at ambient temperature); parts qualified to 650 °C test temperature.
  • Coating: Electrolytic silver plating all over, Category A per EN 2786; coating thickness 3 µm to 6 µm on thread flanks measured at pitch diameter.
  • Dimensions and tolerances: Detailed sizes, diameter codes and available lengths are specified in the standard’s tables (dimensions in mm and masses per 1 000 pieces). Surface roughness values are given prior to coating; edges to be removed to 0.1–0.4 mm.
  • Threads and limits: Conformance to aerospace thread standards (ISO 3353‑1 for rolled external threads and ISO 5855 series for MJ threads).
  • Marking and designation: Marking per EN 2424 (Category A) and a clear designation format (example: BOLT EN3613‑060‑030).

Applications and practical use

  • High‑temperature aerospace assemblies: Fastening in engine hot sections, exhaust systems, turbine housings and any structural component exposed to elevated temperatures where Inconel 718’s creep and strength properties are required.
  • Corrosion and contact compatibility: Silver plating improves conductivity and contact properties where galvanic behavior, lubrication or seizure prevention are critical.
  • Procurement & quality control: Used by OEMs, suppliers and QA teams to ensure purchased fasteners meet consistent mechanical, dimensional and plating specifications.

Who uses EN 3613:2009?

  • Aerospace fastener manufacturers and heat‑treatment shops
  • Design and stress engineers specifying high‑temperature fasteners
  • Procurement specialists and parts cataloguers
  • Quality assurance, inspection and certification bodies
  • Maintenance, repair and overhaul (MRO) organizations

Related standards

  • EN 2952 (material NI‑PH2601 bar for forged fasteners)
  • EN 2786 (electrolytic silver plating of fasteners)
  • EN 2424 (marking of aerospace products)
  • EN 2583 (technical specification for MJ thread bolts in NI‑PH2601)
  • ISO 3353‑1, ISO 5855‑1 / ‑2 (aerospace thread requirements and dimensions)

Keywords: EN 3613:2009, aerospace bolts, Inconel 718, NI‑PH2601, hexagonal head bolts, relieved shank, long thread, silver plated, CEN, high‑temperature fasteners.

Frequently Asked Questions

SIST EN 3613:2009 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Bolts, normal hexagonal head, relieved shank, long thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated - Classification: 1275 MPa/650 °C". This standard covers: This standard specifies the characteristics of bolts normal hexagonal head with relieved shank and long thread in heat resisting nickel base alloy NI-PH2601 (Inconel 718), for aerospace applications. Classification: 1 275 MPa ) / 650 °C )

This standard specifies the characteristics of bolts normal hexagonal head with relieved shank and long thread in heat resisting nickel base alloy NI-PH2601 (Inconel 718), for aerospace applications. Classification: 1 275 MPa ) / 650 °C )

SIST EN 3613:2009 is classified under the following ICS (International Classification for Standards) categories: 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 3613:2009 has the following relationships with other standards: It is inter standard links to oSIST prEN 3613:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 3613:2009 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-oktober-2009
Aeronavtika - Sorniki, normalna šestroba glava, tanko steblo, dolg navoj, iz
toplotnoodporne zlitine na nikljevi osnovi NI-PH2601 (Inconel 718), posrebreni -
Klasifikacija: 1275 MPa/650 °C
Aerospace series - Bolts, normal hexagonal head, relieved shank, long thread, in heat
resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated - Classification: 1275
MPa/650 °C
Luft- und Raumfahrt - Sechskantschrauben, Dünnschaft, langes Gewinde, aus
hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel 718), versilbert - Klasse: 1275
MPa/650 °C
Série aérospatiale - Vis à tête hexagonale normale, fût dégagé, filetage long, en alliage
base nickel, résistant à chaud NI-PH2601 (Inconel 718), argentées - Classification: 1275
MPa/650 °C
Ta slovenski standard je istoveten z: EN 3613:2009
ICS:
49.030.20 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3613
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2009
ICS 49.030.20
English Version
Aerospace series - Bolts, normal hexagonal head, relieved
shank, long thread, in heat resisting nickel base alloy NI-
PH2601 (Inconel 718), silver plated - Classification: 1 275
MPa/650 °C
Série aérospatiale - Vis à tête hexagonale normale, fût Luft- und Raumfahrt - Sechskantschrauben, Dünnschaft,
dégagé, filetage long, en alliage base nickel, résistant à langes Gewinde, aus hochwarmfester Nickelbasislegierung
chaud NI-PH2601 (Inconel 718), argentées - Classification : NI-PH2601 (Inconel 718), versilbert - Klasse: 1 275
1 275 MPa/650 °C MPa/650 °C
This European Standard was approved by CEN on 20 May 2009.

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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3613:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Requirements characteristics .4
4 Designation .8
5 Marking .8
6 Technical specification .8

Foreword
This document (EN 3613:2009) has been prepared by the Aerospace and Defence Industries Association of
Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of ASD,
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 January 2010, and conflicting national standards shall be withdrawn at
the latest by January 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This standard specifies the characteristics of bolts normal hexagonal head with relieved shank and long
thread in heat resisting nickel base alloy NI-PH2601 (Inconel 718), for aerospace applications.
1) 2)
Classification: 1 275 MPa / 650 °C
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 2424, Aerospace se
...

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