prEN 4496
(Main)Aerospace series - Screw, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature)/315 °C
Aerospace series - Screw, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature)/315 °C
This standard specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating, for aerospace applications.
Classification: 1 100 MPa /315 °C .
Luft- und Raumfahrt - 100° Senk-Passschrauben mit Flügelkreuzschlitz, enge Schafttoleranz, kurzes Gewinde, aus Titanlegierung, anodisiert, mit aluminiumpigmentierter Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur)/315 °C
Série aérospatiale - Vis à tête fraisée 100° normale, à empreinte cruciforme déportée, tige normale à tolérance serrée, filetage court, en alliage de titane, anodisées, avec revêtement alumino-organique - Classification: 1 100 MPa (à température ambiante)/315 °C
Aeronavtika - Vijak, 100° ugrezna glava, križna zareza, polno steblo, ozka toleranca, kratek navoj, iz titanove zlitine, anodiziran, z aluminijem pigmentiranim premazom - Klasifikacija: 1100 MPa (pri temperaturi okolice)/315 °C
General Information
- Status
- Not Published
- Publication Date
- 25-May-2020
- Withdrawal Date
- 25-Nov-2020
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3/S 2 - Fasteners
- Current Stage
- 4098 - Decision to abandon - Enquiry
- Start Date
- 23-Apr-2024
- Completion Date
- 28-Jan-2026
Relations
- Effective Date
- 19-Jan-2023
- Effective Date
- 19-Jan-2023
Overview
prEN 4496 defines an aerospace fastener: a 100° countersunk screw with an offset cruciform recess, close‑tolerance normal shank, short thread, made from titanium alloy, anodized and finished with an aluminium‑pigmented coating. It is a procurement and product specification for aerospace applications and is classified as strength class 1 100 MPa (ambient) with a maximum service temperature of 315 °C (coating‑limited).
Keywords: aerospace screw, titanium alloy screw, 100° countersunk, offset cruciform recess, anodized fastener, aluminium pigmented coating, strength class 1 100 MPa.
Key topics and technical requirements
- Scope and classification: Specifies geometry, materials and coating for aerospace use; minimum tensile strength 1 100 MPa and max temperature 315 °C.
- Dimensions and tolerances: Dimensional data follow ISO 5856 (mm) and apply after coating; tolerance on shank diameter before coating is also specified.
- Form and position tolerances: Referenced to ISO 7913.
- Materials: Titanium alloy requirements are referenced to TR 3775 (titanium alloy, strength class 1 100 MPa).
- Surface treatment: Coating and anodizing according to EN 4473, Type II (aluminium pigmented coating); micrometre values apply prior to coating.
- Drive types and marking: Internal offset cruciform drives per ISO 14275 (ribbed, code R) and ISO 14276 (unribbed, code A); marking and diameter codes per EN 2424.
- Technical procurement: Technical specification aligned with ISO 9152 with modifications; manufacturer approval requires an aerospace production organization and an established quality management system (e.g., EN 9100).
- Qualification and acceptance: Qualification of bolts follows aerospace procedures (e.g., EN 9133) and oversized bolts are handled per EN 4016.
Applications and practical value
- Used wherever a high‑strength, corrosion‑resistant, flush countersunk titanium fastener is required in aerospace assemblies - e.g., structural joints, fittings and metallic assemblies where flush surfaces and high strength‑to‑weight ratio are critical.
- Provides engineers, buyers and manufacturers with a harmonized specification to ensure interchangeability, consistent performance, and traceable procurement.
- Helps maintenance, inspection and quality teams verify conformity (dimensions after coating, marking, material class and coating type).
Who uses this standard
- Aerospace fastener manufacturers and coating suppliers
- Design and structural engineers specifying fasteners
- Procurement teams and supply chain quality managers
- Maintenance, repair and overhaul (MRO) organizations and certification authorities
Related standards
Notable references: EN 4473, ISO 5856, ISO 7913, ISO 9152, TR 3775, EN 2424, EN 4016, ISO 14275, ISO 14276, EN 9100, EN 9133.
Get Certified
Connect with accredited certification bodies for this standard
DEKRA North America
DEKRA certification services in North America.
Eagle Registrations Inc.
American certification body for aerospace and defense.
Element Materials Technology
Materials testing and product certification.
Sponsored listings
Frequently Asked Questions
prEN 4496 is a draft published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Screw, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature)/315 °C". This standard covers: This standard specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating, for aerospace applications. Classification: 1 100 MPa /315 °C .
This standard specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating, for aerospace applications. Classification: 1 100 MPa /315 °C .
prEN 4496 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.
prEN 4496 has the following relationships with other standards: It is inter standard links to EN 4496:2005, EN 4496:2005/AC:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
prEN 4496 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-september-2020
Aeronavtika - Vijak, 100° ugrezna glava, križna zareza, polno steblo, ozka
toleranca, kratek navoj, iz titanove zlitine, anodiziran, z aluminijem pigmentiranim
premazom - Klasifikacija: 1100 MPa (pri temperaturi okolice)/315 °C
Aerospace series - Screw, 100° countersunk normal head, offset cruciform recess, close
tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium
pigmented coating - Classification: 1 100 MPa (at ambient temperature)/315 °C
Luft- und Raumfahrt - 100° Senk-Passschrauben mit Flügelkreuzschlitz, enge
Schafttoleranz, kurzes Gewinde, aus Titanlegierung, anodisiert, mit
aluminiumpigmentierter Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur)/315 °C
Série aérospatiale - Vis à tête fraisée 100° normale, à empreinte cruciforme déportée,
tige normale à tolérance serrée, filetage court, en alliage de titane, anodisées, avec
revêtement alumino-organique - Classification: 1 100 MPa (à température ambiante)/315
°C
Ta slovenski standard je istoveten z: prEN 4496
ICS:
49.025.20 Aluminij Aluminium
49.025.30 Titan Titanium
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
June 2020
ICS 49.030.20 Will supersede EN 4496:2005
English Version
Aerospace series - Screw, 100° countersunk normal head,
offset cruciform recess, close tolerance normal shank,
short thread, in titanium alloy, anodized, with aluminium
pigmented coating - Classification: 1 100 MPa (at ambient
temperature)/315 °C
Série aérospatiale - Vis à tête fraisée 100° normale, à Luft- und Raumfahrt - 100° Senk-Passschrauben mit
empreinte cruciforme déportée, fût normal à tolérance Flügelkreuzschlitz, enge Schafttoleranz, kurzes
serrée, filetage court, en alliage de titane, anodisées, Gewinde, aus Titanlegierung, anodisiert, mit
avec revêtement alumino-organique - Classification: 1 aluminiumpigmentierter Beschichtung - Klasse: 1 100
100 MPa (à température ambiante)/315 °C MPa (bei Raumtemperatur)/315 °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, Turkey 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4496:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Requirements . 5
4.1 Configuration — Dimensions — Masses . 5
4.2 Tolerances of form and position . 5
4.3 Materials . 5
4.4 Surface treatments . 5
5 Designation. 8
6 Marking . 8
7 Technical specification . 9
7.1 General . 9
7.2 Approval of manufacturers . 9
7.3 Qualification of bolts . 9
7.4 Requirement deleted . 9
8 Oversized bolts . 9
Annex A (informative) Standard evolution form . 10
Bibliography . 11
European foreword
This document (prEN 4496:2020) 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-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 4496:2005.
1 Scope
This document specifies the characteristics of screws, 100° countersunk normal head, offset cruciform
recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium
pigmented coating, for aerospace applications.
1 2
Classification: 1 100 MPa /315 °C .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...