SIST EN 2886:2023

Aerospace series - Screw, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C

This document specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance
normal shank, short thread, in alloy steel, cadmium plated.
Classification: 900 MPa1/ 235 °C2.

Luft- und Raumfahrt - Flachkopf-Passschraube mit Flügelkreuzschlitz, kurzes Gewinde, aus legiertem Stahl, verkadmet - Klasse: 900 MPa (bei Raumtemperatur)/235 °C

Dieses Dokument legt die Merkmale von Flachkopf Paßschrauben mit Flügelkreuzschlitz, enger Toleranz und üblichem Schaft, kurzem Gewinde, aus legiertem Stahl, kadmiert, fest.
Klasse: 900 MPa /235 °C .

Série aérospatiale - Vis à tête cylindrique, à empreinte cruciforme déportée, tige normale à tolérance serrée, filetage court, en acier allié, cadmiées - Classification : 900 MPa (à température ambiante)/235 °C

Aeronavtika - Vijaki, valjasta glava, križna zareza, ozka toleranca, kratek navoj, iz legiranega jekla, kadmirani - Klasifikacija: 900 MPa (pri okoljski temperaturi)/235 °C

Ta dokument določa značilnosti vijakov, valjastih glav, križne zareze, ozka toleranca, kratek navoj, iz legiranega jekla, kadmirani.
Klasifikacija: 900 MPa1/235 °C2.

General Information

• Status: Published
• Publication Date: 05-Mar-2023
• ICS: 49.025.10 - Steels
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Mar-2023
• Due Date: 06-May-2023
• Completion Date: 06-Mar-2023
• Ref Project: EN 2886:2023 - Aerospace series - Screw, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C

Relations

• Refers: SIST EN 14460:2006 - Explosion resistant equipment
• Effective Date: 28-Jan-2026
• Refers: SIST EN 16306:2013 - Natural stone test methods - Determination of resistance of marble to thermal and moisture cycles
• Effective Date: 28-Jan-2026
• Refers: SIST EN 9100:2018 - Quality Management Systems - Requirements for Aviation, Space and Defense Organizations
• Effective Date: 28-Jan-2026
• Refers: SIST EN 16855-1:2017 - Walk-in cold rooms - Definition, thermal insulation performance and test methods - Part 1: Prefabricated cold room kits
• Effective Date: 28-Jan-2026
• Refers: SIST EN 840-6:2004+A1:2008 - Mobile waste containers - Part 6: Safety and health requirements
• Effective Date: 28-Jan-2026
• Refers: SIST EN 2424:2008 - Aerospace series - Marking of aerospace products
• Effective Date: 28-Jan-2026
• Refers: SIST EN 2133:2021 - Aerospace series - Cadmium plating of steels with specified tensile strength ≤ 1 450 MPa, copper, copper alloys and nickel alloys
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 17855-1:2015 - Plastics - Polyethylene (PE) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 17855-1:2014)
• Effective Date: 28-Jan-2026
• Revised: SIST EN 2886:2001 - Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature)/235 °C
• Effective Date: 01-Apr-2023

Overview

SIST EN 2886:2023 is a European standard developed by CEN for pan head screws with offset cruciform recess, short thread, and close tolerance, manufactured from alloy steel with cadmium plating. These aerospace screws are classified for use at a strength of 900 MPa at ambient temperature and up to 235 °C. The standard replaces the earlier EN 2886:1996, aligning with current requirements for aerospace components.

This document is essential for manufacturers, suppliers, and quality assurance professionals in the aerospace sector, ensuring screws meet stringent mechanical and environmental requirements for safety and performance.

Key Topics

• Screw Design: Specifies pan head screws with offset cruciform (Phillips-type) recess for enhanced torque transmission and reduced cam-out during installation.
• Materials and Surface Treatment: Describes use of alloy steel (strength class 900 MPa) and application of cadmium plating, which provides corrosion resistance and surface protection.
• Configuration and Tolerances: Details tight dimensional tolerances on shank and threads, suitable for close-fit applications in critical aerospace assemblies.
• Temperature and Performance: Screws are rated for 900 MPa minimum tensile strength at room temperature and stable performance up to 235 °C.
• Marking and Traceability: Requires indented markings for batch identification per EN 2424 for effective traceability.
• Manufacturing Requirements: Production organizations must be approved to recognized aerospace quality management systems (e.g., EN 9100).
• Technical Specifications: Compliance with additional ISO standards for thread geometry and drive features, such as ISO 5855-2, ISO 14275, and ISO 14276.

Applications

• Aerospace Manufacturing: Frequently used in aircraft and spacecraft assemblies where reliability under stress and elevated temperatures is critical.
• Maintenance and Repair: Suitable for replacement parts in technical maintenance due to defined fit and corrosion resistance.
• Aviation Safety Components: Utilized in safety-relevant joinings, panels, and structural elements due to controlled mechanical properties and close tolerances.
• Defense and Military Equipment: Employed in military aviation and defense hardware requiring certified aerospace-grade fasteners.

Related Standards

For comprehensive compliance and best practices, consider these related standards:

• EN 2133: Aerospace series - Cadmium plating requirements for steels.
• EN 2424: Procedures for marking aerospace products for traceability.
• EN 4016: Oversized bolts for aerospace applications.
• EN 9100: Quality management systems for aviation, space, and defense organizations.
• ISO 3353-1: Requirements for rolled external threads.
• ISO 5855-2: MJ thread limit dimensions for bolts and nuts.
• ISO 7689: Procurement specification for alloy steel bolts.
• ISO 7913: Tolerances of form and position for bolts and screws.
• ISO 14275, ISO 14276: Drive features and internal recess dimensions for offset cruciform screws.
• TR 3775: Technical report on materials for aerospace bolts and pins.

Practical Value

Adopting SIST EN 2886:2023 ensures:

• Standardization and Quality: Conformance to recognized aerospace standards improves product quality and compatibility across manufacturers.
• Supply Chain Confidence: Enables traceable and reliable sourcing of critical fasteners.
• Regulatory Compliance: Fulfills international and European aerospace regulatory requirements.
• Performance Assurance: Supports long-term durability and safety in high-stress, high-temperature environments typical of aerospace and defense operations.

Using this standard fosters safety, reliability, and product consistency for aerospace engineering professionals, procurement teams, and stakeholders involved in critical hardware assembly.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2023
Aeronavtika - Vijaki, valjasta glava, križna zareza, ozka toleranca, kratek navoj, iz
legiranega jekla, kadmirani - Klasifikacija: 900 MPa (pri okoljski temperaturi)/235 °C
Aerospace series - Screw, pan head, offset cruciform recess, close tolerance normal
shank, short thread, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient
temperature)/235 °C
Luft- und Raumfahrt - Flachkopf-Passschraube mit Flügelkreuzschlitz, kurzes Gewinde,
aus legiertem Stahl, verkadmet - Klasse: 900 MPa (bei Raumtemperatur)/235 °C
Série aérospatiale - Vis à tête cylindrique, à empreinte cruciforme déportée, tige normale
à tolérance serrée, filetage court, en acier allié, cadmiées - Classification : 900 MPa (à
température ambiante)/235 °C
Ta slovenski standard je istoveten z: EN 2886:2023
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 2886
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2023
EUROPÄISCHE NORM
ICS 49.030.20 Supersedes EN 2886:1996
English Version
Aerospace series - Screw, pan head, offset cruciform
recess, close tolerance normal shank, short thread, in alloy
steel, cadmium plated - Classification: 900 MPa (at
ambient temperature)/235 °C
Série aérospatiale - Vis à tête cylindrique, à empreinte Luft- und Raumfahrt - Flachkopf-Passschraube mit
cruciforme déportée, tige normale à tolérance serrée, Flügelkreuzschlitz, kurzes Gewinde, aus legiertem
filetage court, en acier allié, cadmiées - Classification : Stahl, verkadmet - Klasse: 900 MPa (bei
900 MPa (à température ambiante)/235 °C Raumtemperatur)/235 °C
This European Standard was approved by CEN on 7 July 2019.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2886:2023 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 – Masses . 5
4.2 Tolerances of form and position . 5
4.3 Materials . 5
4.4 Surface treatment . 5
5 Designation . 7
6 Marking . 8
7 Technical specification . 8
7.1 General. 8
7.2 Approval of manufacturers . 8
7.3 Other modified requirements . 8
7.4 Requirements deleted . 9
8 Oversized bolts . 9
Annex A (informative) Standard evolution form . 10

European foreword
This document (EN 2886:2023) 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 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 August 2023, and conflicting national standards shall
be withdrawn at the latest by August 2023.
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 2886:1996.
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 organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, De
...