EN 4162:2026

• Abstract:

  This document specifies the characteristics of bolts, 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated.; Classification: 1 100 MPa /235 °C .

• Status: Published
• Publication Date: 01-Sep-2026
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 3/S 2 - Fasteners
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 02-Sep-2026
• Completion Date: 02-Sep-2026
• Ref Project: SIST EN 4162:2026 - Aerospace series - Screw, 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature)/235 °C

• Refers: ISO 3353-1:2020 - Aerospace — Lead and runout threads — Part 1: Rolled external threads
• Effective Date: 30-Sep-2026
• Refers: ISO 7913:1994 - Aerospace — Bolts and screws, metric — Tolerances of form and position
• Effective Date: 30-Sep-2026
• Refers: ISO 4520:1981 - Chromate conversion coatings on electroplated zinc and cadmium coatings
• Effective Date: 30-Sep-2026
• Refers: EN 2133:2020 - Aerospace series - Cadmium plating of steels with specified tensile strength ≤ 1 450 MPa, copper, copper alloys and nickel alloys
• Effective Date: 30-Sep-2026
• Refers: ISO 14275:2002 - Aerospace — Drives, internal, offset cruciform, ribbed — Metric series
• Effective Date: 30-Sep-2026
• Refers: ISO 14276:2002 - Aerospace — Drives, internal, offset cruciform — Metric series
• Effective Date: 30-Sep-2026
• Refers: EN 2137:2017 - Aerospace series - Steel FE-PL75 - 1 100 MPa ≤ Rm ≤ 1 250 MPa - Bars - De ≤ 100 mm
• Effective Date: 30-Sep-2026
• Refers: ISO 7689:2025 - Aerospace series — Bolts, with MJ threads, made of alloy steel, strength class 1 100 MPa — Procurement specification
• Effective Date: 30-Sep-2026
• Refers: ISO 5856:2008 - Aerospace — Screws, 100 degrees normal countersunk head, internal offset cruciform ribbed or unribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa — Dimensions
• Effective Date: 30-Sep-2026
• Refers: ISO 5855-2:1999 - Aerospace — MJ threads — Part 2: Limit dimensions for bolts and nuts
• Effective Date: 30-Sep-2026
• Refers: EN 2424:2008 - Aerospace series - Marking of aerospace products
• Effective Date: 30-Sep-2026
• Revises: EN 4162:2016 - Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C
• Effective Date: 05-Jun-2024
• Revises: EN 4162:2016/AC:2017 - Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C
• Effective Date: 05-Jun-2024

Overview

EN 4162:2026 is a European standard developed by CEN for aerospace applications, specifying the requirements for screws with a 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, and medium-length thread. These screws are made from alloy steel and are cadmium plated, designed for a tensile strength classification of 1,100 MPa at ambient temperature and maximum usage up to 235 °C. The document replaces the previous EN 4162:2016, introducing updated terminology, surface treatment guidelines, and drive code references.

This standard ensures high performance and reliability of fasteners installed in demanding avionics, structural, and mechanical environments typical in the aerospace industry.

Key Topics

• Product Features:

  • 100° countersunk head for flush installation in assemblies
  • Offset cruciform recess for improved torque transmission and reduced cam-out
  • Coarse tolerance normal shank and medium thread length for versatile application
  • Constructed from alloy steel, classified as 1,100 MPa tensile strength
  • Cadmium plated for enhanced corrosion resistance and durability

• Surface Treatments:

  • Cadmium plating thickness of 8–14 µm on exposed surfaces
  • Surface finish options including chromate conversion, black chromate, and hexavalent chromium-free passivation
  • Preference for environmentally safer, non-chromium (VI) treatments where available

• Dimensional and Mechanical Compliance:

  • Dimensions and tolerances conforming to ISO 5856 and ISO 7913
  • Marking requirements as per EN 2424 for traceability
  • Material compliance with EN 2137 and EN 3514 or the technical report TR 3775

• Quality Assurance:

  • Manufacturers required to operate under approved quality management systems, such as EN 9100
  • Product qualification per EN 9133, demonstrating consistent quality and compliance

Applications

• Aerospace and Aviation:
  EN 4162:2026 screws are engineered primarily for aircraft structure, avionics panels, and high-performance aerospace assemblies, ensuring safe and secure fastening solutions across the sector.

• High-Reliability Environments:
  Their high tensile strength, precise manufacturing tolerances, and corrosion-resistant surface treatment make them suitable for use in environments where strength, vibration resistance, and minimal maintenance are critical.

• International Manufacturing and Procurement:
  Adherence to EN 4162 in procurement ensures compatibility, interchangeability, and reliability across supply chains focused on aerospace components, supporting compliance with international aerospace fastener quality requirements.

Related Standards

• EN 2133:
  Aerospace series - Cadmium plating of steels with specified tensile strength; defines plating procedures referenced in EN 4162.

• EN 2424:
  Marking of aerospace products; specifies product marking for traceability.

• ISO 5856 & ISO 5855-2:
  Detail thread profiles, head types, and tolerance requirements for aerospace screws.

• EN 9100:
  Quality Management Systems for Aviation, Space, and Defence; required for approved manufacturers.

• EN 9133:
  Qualification procedure for aerospace standard products.

By strictly following EN 4162:2026, manufacturers and users of aerospace fasteners benefit from elevated standards of safety, performance, and interchangeability, supporting efficient global aerospace and aviation operations.

SLOVENSKI STANDARD
01-november-2026
Aeronavtika - Vijak, 100° ugrezna glava, križna zareza, polno steblo, ozka
toleranca, srednja navojna dolžina, iz legiranega jekla, prevlečen s kadmijem -
Klasifikacija: 1100 MPa (pri temperaturi okolice)/235 °C
Aerospace series - Screw, 100° countersunk normal head, offset cruciform recess,
coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated -
Classification: 1 100 MPa (at ambient temperature)/235 °C
Luft- und Raumfahrt - 100°-Senkschraube mit Flügelkreuzschlitz, mittlere Gewindelänge,
aus legiertem Stahl, verkadmet - Klasse: 1 100 MPa (bei Raumtemperatur)/235 °C
Série aérospatiale - Vis à tête fraisée 100° normale, à empreinte cruciforme déportée,
tige normale à tolérance large, filetage moyen, en acier allié, cadmiée - Classification: 1
100 MPa (à température ambiante)/235 °C
Ta slovenski standard je istoveten z: EN 4162:2026
ICS:
49.025.10 Jekla Steels
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 4162
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2026
EUROPÄISCHE NORM
ICS 49.030.20
English Version
Aerospace series - Screw, 100° countersunk normal head,
offset cruciform recess, coarse tolerance normal shank,
medium length thread, in alloy steel, cadmium plated -
Classification: 1 100 MPa (at ambient temperature)/235
°C
Série aérospatiale - Vis à tête fraisée 100° normale, à Luft- und Raumfahrt - 100°-Senkschraube mit
empreinte cruciforme déportée, tige normale à Flügelkreuzschlitz, mittlere Gewindelänge, aus
tolérance large, filetage moyen, en acier allié, cadmiée - legiertem Stahl, verkadmet - Klasse: 1 100 MPa (bei
Classification : 1 100 MPa (à température Raumtemperatur)/235 °C
ambiante)/235 °C
This European Standard was approved by CEN on 3 August 2026.

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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4162:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Required characteristics . 5
4.1 Configuration — Dimensions — Mass . 5
4.2 Tolerances of form and position . 5
4.3 Materials . 5
4.4 Surface treatment . 5
5 Designation . 9
6 Marking . 9
7 Technical specification . 10
7.1 General. 10
7.2 Approval of manufacturers . 10
7.3 Qualification of screws . 10
Bibliography . 11

European foreword
This document (EN 4162:2026) 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 March 2027, and conflicting national standards shall
be withdrawn at the latest by March 2027.
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.
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-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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 the
United Kingdom.
1 Scope
This document specifies the characteristics of screws, 100° countersunk normal head, offset cruciform
recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated.
1 2
Classification: 1 100 MPa /235 °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
...