Aerospace series - Screws, 100° countersunk head, six lobe recess, short thread, in titanium alloy TI-P64001, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C

This standard specifies the characteristics of screws with 100° countersunk head, with six lobe recess, short
thread, in titanium alloy TI-P64001, aluminium pigmented coating, for aerospace applications.

Luft- und Raumfahrt - 100°-Senkschrauben, kurzes Gewinde, Sechs-Bogenzahn, aus Titanlegierung TI-P64001, mit aluminiumpigmentierter Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 °C

Diese Norm legt die Eigenschaften für 100° Senkrschrauben mit Sechs-Bogenzahn und kurzem Gewinde aus Titanlegierung TI-P64001 mit aluminiumpigmentierter Beschichtung zur Anwendung in der Luft- und Raum¬fahrt fest.

Série aérospatiale - Vis, 100° à tête fraisée, à filetage court, à empreinte six lobes,en alliage de titane TI-P64001, avec revêtement alumino-organique - Classification: 1 100 MPa (à température ambiante) / 315 °C

La présente norme spécifie les caractéristiques des vis, 100° à tête fraisée, à filetage court, à empreinte six
lobes, en alliage de titane TI-P64001 avec revêtement alumino-organique pour applications aérospatiales.

Aeronavtika - Vijaki, 100° ugrezna glava, šestzoba vdolbina, kratek navoj, iz titanove zlitine TI-P64001, z aluminijem pigmentiranim premazom - Klasifikacija: 1100 MPa (pri temperaturi okolice)/315 °C

General Information

Status
Published
Publication Date
02-Jun-2009
Withdrawal Date
30-Dec-2009
Technical Committee
Drafting Committee
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
21-Jan-2025
Completion Date
14-May-2025

Overview

EN 4636:2009 is a European standard developed by CEN that specifies the characteristics of aerospace screws with a 100° countersunk head, six lobe recess, and short thread, made from titanium alloy TI-P64001. These screws feature an aluminium pigmented coating and are classified with a tensile strength of 1,100 MPa at ambient temperature and are rated for use up to 315 °C. Intended primarily for aerospace applications, this standard ensures the reliability, durability, and high performance required for critical aerospace fasteners.

Key Topics

  • Screw Configuration and Dimensions
    Specifies dimensions, tolerances, and masses for the screws after surface treatment. The 100° countersunk head and six lobe recess design are optimized for aerospace fastener applications, ensuring secure and precise fastening with short threaded lengths.

  • Material Requirements
    The screws comply with EN 3813 and are produced from titanium alloy TI-P64001, known for its high strength-to-weight ratio and excellent corrosion resistance, essential for aerospace environmental conditions.

  • Surface Treatment
    The screws are coated with an aluminium pigmented coating conforming to EN 4473. This surface treatment enhances corrosion resistance and wear properties, crucial for aerospace components exposed to extreme operating environments.

  • Tolerances of Form and Position
    Geometrical tolerances follow ISO 7913 to guarantee precise manufacturing standards, ensuring interchangeability and consistent performance in aerospace assemblies.

  • Marking and Designation
    Marking guidelines per EN 2424 ensure traceability and correct identification, important for quality control and compliance. The designation format includes size and length codes for standardized ordering and specification.

  • Quality and Compliance
    Manufacturer approval follows EN 9100 quality management system standards. Bolt qualification is in accordance with EN 9133, assuring adherence to aerospace industry procurement specifications.

Applications

EN 4636:2009 screws are designed specifically for aerospace sector fastener needs, suitable for assembly in:

  • Aircraft structural components
  • Aerospace engines and systems requiring high strength fasteners
  • Lightweight, corrosion-resistant joinery in aerospace manufacturing
  • Environments exposed to elevated temperatures (up to 315 °C) and demanding mechanical loads

Their combination of titanium alloy strength, aluminium pigmented coating, and precise engineering tolerances makes them ideal for high-performance aerospace assemblies that demand reliability, safety, and long service life.

Related Standards

  • EN 3813 – Titanium alloy TI-P64001 bar and wire specifications for forged fasteners
  • EN 4473 – Aluminium pigmented coating technical specifications
  • ISO 3353-1 – Aerospace lead and runout threads for rolled external threads
  • ISO 5855-2 – Limits and dimensions for aerospace bolts and nuts with MJ threads
  • ISO 7913 – Tolerances of form and position for metric aerospace bolts and screws
  • ISO 9152 – Procurement specification for MJ thread bolts in titanium alloys (strength class 1100 MPa)
  • EN 2424 – Marking of aerospace products
  • EN 9100 – Aerospace quality management system requirements
  • EN 9133 – Qualification procedure for aerospace standard parts

Keywords: EN 4636:2009, aerospace screws, titanium alloy TI-P64001, six lobe recess screws, 100° countersunk head, aluminium pigmented coating, aerospace fasteners, high strength aerospace bolts, aerospace thread standards, aerospace manufacturing quality control.

Standard
EN 4636:2009
English language
7 pages
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Frequently Asked Questions

EN 4636:2009 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Screws, 100° countersunk head, six lobe recess, short thread, in titanium alloy TI-P64001, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C". This standard covers: This standard specifies the characteristics of screws with 100° countersunk head, with six lobe recess, short thread, in titanium alloy TI-P64001, aluminium pigmented coating, for aerospace applications.

This standard specifies the characteristics of screws with 100° countersunk head, with six lobe recess, short thread, in titanium alloy TI-P64001, aluminium pigmented coating, for aerospace applications.

EN 4636:2009 is classified under the following ICS (International Classification for Standards) categories: 49.030.10 - Screw threads; 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN 4636:2009 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-september-2009
Aeronavtika - Vijaki, 100° ugrezna glava, šestzoba vdolbina, kratek navoj, iz
titanove zlitine TI-P64001, z aluminijem pigmentiranim premazom - Klasifikacija:
1100 MPa (pri temperaturi okolice)/315 °C
Aerospace series - Screws, 100° countersunk head, six lobe recess, short thread, in
titanium alloy TI-P64001, with aluminium pigmented coating - Classification: 1 100 MPa
(at ambient temperature) / 315 °C
Luft- und Raumfahrt - 100° Senkschrauben, kurzes Gewinde, Sechs-Bogenzahn,aus
Titanlegierung TI-P64001, mit aluminium pigmentierter Beschichtung - Klasse: 1 100
MPa (bei Raumtemperatur) / 315 °C
Série aérospatiale - Vis, 100° à tête fraisée, à filetage court, à empreinte six lobes,en
alliage de titane TI-P64001, avec revêtement alumino-organique - Classification: 1 100
MPa (à température ambiante) / 315 °C
Ta slovenski standard je istoveten z: EN 4636:2009
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.

EUROPEAN STANDARD
EN 4636
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2009
ICS 49.030.10
English Version
Aerospace series - Screws, 100° countersunk head, six lobe
recess, short thread, in titanium alloy TI-P64001, with aluminium
pigmented coating - Classification: 1 100 MPa (at ambient
temperature) / 315 °C
Série aérospatiale - Vis, 100° à tête fraisée, à filetage Luft- und Raumfahrt - 100° Senkschrauben, kurzes
court, à empreinte six lobes,en alliage de titane TI-P64001, Gewinde, Sechs-Bogenzahn,aus Titanlegierung TI-P64001,
avec revêtement alumino-organique - Classification: 1 100 mit aluminium pigmentierter Beschichtung - Klasse: 1 100
MPa (à température ambiante) / 315 °C MPa (bei Raumtemperatur) / 315 °C
This European Standard was approved by CEN on 20 March 2009.

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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4636:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Required characteristics .4
3.1 Configuration – Dimensions – Tolerances – Masses .4
3.2 Materials .4
3.3 Surface treatment .5
3.4 Tolerances of form and position .5
4 Designation .6
5 Marking .7
6 Technical specification .7
6.1 General .7
6.2 Approval of manufacturers .7
6.3 Qualification of bolts .7
6.4 Requirement deleted .
...

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