prEN 4128

SLOVENSKI STANDARD
01-maj-2024
Aeronavtika - Sornik, normalna šestroba glava, široka toleranca, kratek navoj, iz
toplotnoodporne zlitine na nikljevi osnovi, prevlečeni z aluminijem IVD -
Klasifikacija: 1250 MPa (pri temperaturi okolice) / 425 °C
Aerospace series - Bolt, normal hexagonal head, coarse tolerance shank, short thread,
in heat resisting nickel base alloy, aluminium IVD coated - Classification: 1 250 MPa (at
ambient temperature)/425 °C
Luft- und Raumfahrt - Sechskantschrauben, kurzes Gewinde, aus hochwarmfester
Nickelbasislegierung, Aluminium-IVD-beschichtet - Klasse: 1 250 MPa (bei
Raumtemperatur) / 425 °C
Série aérospatiale - Vis à tête hexagonale normale, fût à tolérance large, filetage court,
en alliage résistant à chaud à base de nickel, revêtues aluminium IVD - Classification: 1
250 MPa (à température ambiante) / 425 °C
Ta slovenski standard je istoveten z: prEN 4128
ICS:
49.025.20 Aluminij Aluminium
49.030.20 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2023
ICS 49.030.20 Will supersede EN 4128:2016
English Version
Aerospace series - Bolt, normal hexagonal head, coarse
tolerance shank, short thread, in heat resisting nickel base
alloy, aluminium IVD coated - Classification: 1 250 MPa (at
ambient temperature)/425 °C
Série aérospatiale - Vis à tête hexagonale normale, fût à Luft- und Raumfahrt - Sechskantschrauben, kurzes
tolérance large, filetage court, en alliage résistant à Gewinde, aus hochwarmfester Nickelbasislegierung,
chaud à base de nickel, revêtues aluminium IVD - Aluminium-IVD-beschichtet - Klasse: 1 250 MPa (bei
Classification: 1 250 MPa (à température ambiante) / Raumtemperatur) / 425 °C
425 °C
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4128:2023 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 – Masses . 4
4.2 Materials . 5
4.3 Surface treatment . 5
5 Designation . 7
6 Marking . 7
7 Technical specification . 7
7.1 General. 7
7.2 Approval of manufacturers . 8
7.3 Qualification of bolts. 8
Bibliography . 9

European foreword
This document (prEN 4128:2023) 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 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 document is currently submitted to the CEN Enquiry.
This document will supersede EN 4128:2016.
— normative references updated;
— Clause 3 “Terms and definitions” added;
— Figure 1 updated;
— 7.2 and 7.3 revised;
— Bibliography updated;
— document editorially revised.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
1 Scope
This document specifies the characteristics of bolts, normal hexagonal head, coarse tolerance shank,
short thread, in heat resisting nickel base alloy, aluminium IVD coated.
1 2
Classification: 1 250 MPa /425 °C .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 series — Marking of aerospace products
prEN 6118, Aerospace serie
...