SIST EN 4073:2025

Aerospace series - Screws, pan head, hexalobular recess, coarse tolerance shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C

This document specifies the characteristics of screws, pan head, six lobe recess, coarse tolerance shank, medium length thread, in alloy steel, cadmium plated.
Classification: 1 100 MPa   / 235 °C  .

Luft- und Raumfahrt - Flachkopfschraube, mit Innensechsrund, mit mittlerer Gewindelänge, aus legiertem Stahl, verkadmet - Klasse: 1 100 MPa (bei Raumtemperatur) / 235 °C

Série aérospatiale - Vis à tête cylindrique, à empreinte six lobes, tige a tolérance large, filetage moyen, en acier allié, cadmiées - Classification: 1 100 MPa (à température ambiente) / 235 °C

Le présent document spécifie les caractéristiques des vis à tête cylindrique, à empreinte six lobes, tige à tolérance large, filetage moyen, en acier allié, cadmiées.
Classification : 1 100 MPa /235 °C.

Aeronavtika - Vijaki, valjasta glava, šestzoba vdolbina, široka toleranca, srednja navojna dolžina, iz legiranega jekla, prevlečeni s kadmijem - Klasifikacija: 1 100 MPa (pri temperaturi okolice) / 235 °C

General Information

• Status: Published
• Public Enquiry End Date: 12-Sep-2023
• Publication Date: 08-Apr-2025
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 08-Apr-2025
• Due Date: 13-Jun-2025
• Completion Date: 09-Apr-2025
• Ref Project: EN 4073:2025 - Aerospace series - Screw, pan head, hexalobular recess, coarse tolerance shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C

Relations

• Revised: SIST EN 4073:2016 - Aerospace series - Screws, pan head, hexalobular recess, coarse tolerance shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2025
Aeronavtika - Vijaki, valjasta glava, šestzoba vdolbina, široka toleranca, srednja
navojna dolžina, iz legiranega jekla, prevlečeni s kadmijem - Klasifikacija: 1 100
MPa (pri temperaturi okolice) / 235 °C
Aerospace series - Screws, pan head, hexalobular recess, coarse tolerance shank,
medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at
ambient temperature) / 235 °C
Luft- und Raumfahrt - Flachkopfschraube, mit Innensechsrund, mit mittlerer
Gewindelänge, aus legiertem Stahl, verkadmet - Klasse: 1 100 MPa (bei
Raumtemperatur) / 235 °C
Série aérospatiale - Vis à tête cylindrique, à empreinte six lobes, tige a tolérance large,
filetage moyen, en acier allié, cadmiées - Classification: 1 100 MPa (à température
ambiente) / 235 °C
Ta slovenski standard je istoveten z: EN 4073:2025
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.

EN 4073
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2025
EUROPÄISCHE NORM
ICS 49.030.20 Supersedes EN 4073:2016
English Version
Aerospace series - Screw, pan head, hexalobular recess,
coarse tolerance shank, medium length thread, in alloy
steel, cadmium plated - Classification: 1 100 MPa (at
ambient temperature) / 235 °C
Série aérospatiale - Vis à tête cylindrique, à empreinte Luft- und Raumfahrt - Flachkopfschraube, mit
six lobes, tige à tolérance large, filetage moyen, en acier Innensechsrund, mit mittlerer Gewindelänge, aus
allié, cadmiée - Classification : 1 100 MPa (à legiertem Stahl, verkadmet - Klasse: 1 100 MPa (bei
température ambiante)/235 °C Umgebungstemperatur)/235 °C
This European Standard was approved by CEN on 20 January 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.

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United Kingdom.
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© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4073:2025 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 – Masses . 4
4.2 Tolerances of form and position . 5
4.3 Materials . 5
4.4 Surface treatment . 5
5 Designation . 8
6 Marking . 8
7 Technical specification . 8
7.1 General. 8
7.2 Approval of manufacturers . 8
7.3 Qualification of bolts. 9
Bibliography . 10

European foreword
This document (EN 4073:2025) 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 September 2025, and conflicting national standards
shall be withdrawn at the latest by September 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 4073:2016.
This document includes the following significant technical changes with respect to EN 4073:2016:
— Clause 3 “Terms and definitions” added;
— Figure 1 corrected;
— Table 1 Footnote added;
— Annex A has been removed.
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.
According to the CEN-CE
...