SIST EN 3907:2005

Aerospace series - Bolts, double hexagon head, normal shank, long thread, in titanium alloy TI-P64001, MoS2 coated - Classification: 1 100 MPa (at ambient temperature) / 350 °C

This standard specifies the characteristics of double hexagon headed bolts with normal shank and long thread in titanium alloy TI-P63, MoS2 coated for aerospace applications.
Classification: 1 100 MPa  ) / 350 °C

Luft- und Raumfahrt - Zwölfkantschrauben, langes Gewinde, aus Titanlegierung TI-P64001, MoS2 beschichtet - Klasse: 1 100 MPa (bei Raumtemperatur) / 350 °C

Diese Norm legt die Eigenschaften von Zwölfkantschrauben mit langem Gewinde, aus Titanlegierung TI P64001, MoS2-beschichtet, für Anwendungen in der Luft- und Raumfahrt fest.
Klasse: 1 100 MPa )/350 °C ).

Série aérospatiale - Vis a tete bihexagonale, fut normal, filetage long, en alliage de titane TI-P64001, revetues MoS2 - Classification : 1 100 MPa (a température ambiante) / 350 °C

Aerospace series - Bolts, double hexagon head, normal shank, long thread, in titanium alloy TI-P64001, MoS2 coated - Classification: 1 100 MPa (at ambient temperature) / 350 °C

General Information

• Status: Published
• Publication Date: 31-May-2005
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-2005
• Due Date: 01-Jun-2005
• Completion Date: 01-Jun-2005
• Ref Project: EN 3907:2004 - Aerospace series - Bolts, double hexagon head, normal shank, long thread, in titanium alloy TI-P64001, MoS2 coated - Classification: 1 100 MPa (at ambient temperature) / 350 °C

Relations

• Replaces: SIST EN 3907:2004 - Aerospace series - Bolts, double hexagon head, normal shank, long thread, in titanium alloy TI-P64001, MoS2 coated - Classification: 1 100 MPa (at ambient temperature)/350 °C
• Effective Date: 01-Jun-2005

Overview

SIST EN 3907:2005 is a CEN aerospace standard that specifies the required characteristics for double hexagon head bolts (bihexagonal drives) with normal shank and long thread manufactured in titanium alloy TI-P64001 and MoS2 coated for aerospace use. The standard defines classification (1 100 MPa at ambient temperature / 350 °C maximum test temperature), designation rules, marking and references the key normative documents needed for manufacturing and inspection.

Key Topics

• Configuration, dimensions and tolerances: Dimensional requirements and tolerances are provided in the standard (see Figure 1, Tables 1 and 2). Values are stated in millimetres and apply before MoS2 coating.
• Material: Bolts are specified to be in titanium alloy TI-P64001 (reference EN 3813) for forged fasteners with indicated size limits.
• Surface treatment: MoS2 dry lubricant coating (molybdenum disulphide) is specified in accordance with EN 2491. Dimensions given apply prior to coating application.
• Classification: Strength class is indicated as 1 100 MPa (ambient) with a maximum part test temperature of 350 °C - provided in the standard wording.
• Designation and marking: Example designation format is shown (e.g., BOLT EN3907-080050) and marking follows EN 2424 (style A).
• Referenced standards: The standard lists essential normative references such as ISO 3353-1, ISO 4095, ISO 5855-2, EN 2424, EN 2491, EN 3813 and EN 3818 which govern threads, wrenching configuration, limits and technical specifications.

Applications

SIST EN 3907:2005 is intended for aerospace manufacturers, procurement teams, quality engineers and fastener designers who require:

• Consistent, compliant titanium bolting solutions for airframes and structural assemblies.
• Guidance on dimensional interchangeability, marking and designation to ensure traceability and supply-chain conformity.
• Specification of MoS2 dry-lubricant coatings to control friction and assembly characteristics in aerospace service conditions.
• A reference for procurement and inspection procedures when sourcing bihexagon head bolts rated for elevated-temperature applications.

Related Standards

Key related documents referenced within SIST EN 3907:2005 include:

• EN 2491 - Molybdenum disulphide dry lubricants and coating methods
• EN 3813 / EN 3818 - Titanium alloy TI-P64001 material and bolt technical specifications
• ISO 3353-1, ISO 4095, ISO 5855-2 - Thread runout, bihexagonal drives and MJ thread limits
• EN 2424 - Marking of aerospace products

Compliance with SIST EN 3907:2005 helps ensure that titanium double-hexagon head bolts meet consistent dimensional, material and marking requirements for aerospace assemblies operating up to the stated temperature limits.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2005
1DGRPHãþD
SIST EN 3907:2004
Aerospace series - Bolts, double hexagon head, normal shank, long thread, in
titanium alloy TI-P64001, MoS2 coated - Classification: 1 100 MPa (at ambient
temperature) / 350 °C
Aerospace series - Bolts, double hexagon head, normal shank, long thread, in titanium
alloy TI-P64001, MoS2 coated - Classification: 1 100 MPa (at ambient temperature) / 350
°C
Luft- und Raumfahrt - Zwölfkantschrauben, langes Gewinde, aus Titanlegierung TI-
P64001, MoS2 beschichtet - Klasse: 1 100 MPa (bei Raumtemperatur) / 350 °C
Série aérospatiale - Vis a tete bihexagonale, fut normal, filetage long, en alliage de titane
TI-P64001, revetues MoS2 - Classification : 1 100 MPa (a température ambiante) / 350 °
C
Ta slovenski standard je istoveten z: EN 3907:2004
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.

EUROPEAN STANDARD
EN 3907
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS 49.030.20 Supersedes EN 3907:2003
English version
Aerospace series - Bolts, double hexagon head, normal shank,
long thread, in titanium alloy TI-P64001, MoS2 coated -
Classification: 1 100 MPa (at ambient temperature) / 350° C
Série aérospatiale - Vis à tête bihexagonale, fût normal, Luft- und Raumfahrt - Zwölfkantschrauben, langes
filetage long, en alliage de titane TI-P64001, revêtues Gewinde, aus Titanlegierung TI-P64001, MoS2-beschichtet
MoS2 - Classification : 1 100 MPa (à température - Klasse: 1 100 MPa (bei Raumtemperatur) / 350° C
ambiante) / 350° C
This European Standard was approved by CEN on 11 September 2003.

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

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3907:2004: E
worldwide for CEN national Members.

Contents                                                                       Page

Foreword.3
1 Scope .4
2 Normative references .4
3 Required characteristics.4
4 Designation .8
5 Marking .8
6 Technical specification .8
Foreword
This document (EN 3907:2004) has been prepared by the European Association of Aerospace
Manufacturers - Standardization (AECMA-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
AECMA, 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 May 2005, and conflicting national standards shall be withdrawn at
the latest by May 2005.
This document supersedes EN 3907:2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
1 Scope
This standard specifies the characteristics of double hexagon headed bolts, with normal shank and long
thread, in TI-P64001, MoS coated, for aerospace applications.
1) 2)
Classification: 1 100 MPa / 350 °C
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3353-1, Aerospace – Lead and runout threads – Part 1: Rolled external threads
ISO 4095, Aerospace – Bihexagonal drives – Wrenching configuration – Metric series
ISO 5855-2, Aerospace – MJ threads – Part 2: Limit dimensions for bolts and nuts
EN 2424, Aerospace series – Marking of aerospace products
EN 2491, Aerospace series – Molybdenum disulphide dry lubricants – Coating methods
EN 3813, Aerospace series – Titanium alloy TI-P64001 – Annealed – Bar and wire for forged fasteners –
3)
D ≤ 25 mm
e
EN 3818, Aerospace series – Bolts, MJ threads, in titanium alloy TI-P64001 – Strength class: 1 100 MPa
(at ambient temperature) – Technical specification
3 Required characteristics
3.1 Configuration – Dimensions – Tolerances – Masses
See Figure 1 and Tables 1 and 2.
Dimensions and tolerances are in millimetres. They apply before MoS coating.
3.2 Material
EN 3813
3.3 Surface treatment
EN 2491

1) Minimum tensile strength of the material at ambient t
...