EN 3381:2025

SLOVENSKI STANDARD
01-januar-2026
Nadomešča:
SIST EN 3381:2001
Aeronavtika - Vijaki, 100° ugreznjena glava, križna zareza, polno steblo, ozka
toleranca, kratek navoj, iz titanove zlitine, anodizirane, mazane z MoS2 -
Klasifikacija: 1 100 MPa (pri temperaturi okolice)/315 °C
Aerospace series - Screws, 100° countersunk normal head, offset cruciform recess,
close tolerance normal shank, short thread, in titanium alloy, anodized, MOS2 lubricated
- Classification: 1 100 MPa (at ambient temperature) / 315 °C
Luft- und Raumfahrt - 100° Senk-Paβschraube mit Flügelkreuzschlitz, kurzes Gewinde,
aus Titan, anodisiert, MOS2-geschmiert - 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, anodisée, lubrifiée au
MoS2 - Classification : 1 100 MPa (à température ambiante)/315 °C
Ta slovenski standard je istoveten z: EN 3381:2025
ICS:
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.

EN 3381
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2025
EUROPÄISCHE NORM
ICS 49.030.20 Supersedes EN 3381:1996
English Version
Aerospace series - Screws, 100° countersunk normal head,
offset cruciform recess, close tolerance normal shank,
short thread, in titanium alloy, anodized, MoS2 lubricated -
Classification: 1 100 MPa (at ambient temperature)/315
°C
Série aérospatiale - Vis à tête fraisée 100° normale, à Luft- und Raumfahrt - 100°-Senk-Passschraube mit
empreinte cruciforme déportée, tige normale à Flügelkreuzschlitz, kurzes Gewinde, aus
tolérance serrée, filetage court, en alliage de titane, Titanlegierung, anodisiert, MoS2-geschmiert - Klasse: 1
anodisées, lubrifiées au MoS2 - Classification : 1 100 100 MPa (bei Raumtemperatur)/315 °C
MPa (à température ambiante)/315 °C
This European Standard was approved by CEN on 25 August 2025.

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.

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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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3381:2025 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 . 8
6 Marking . 8
7 Technical specification . 9
7.1 General. 9
7.2 Quality management system . 9
7.3 Qualification of screws . 9
8 Oversized bolts . 9
Bibliography . 10

European foreword
This document (EN 3381:2025) 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 April 2026, and conflicting national standards shall be
withdrawn at the latest by April 2026.
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 3381:1996.
This document includes the following significant technical changes with respect to EN 3381:1996:
— editorially updated;
— Clause 3 “Terms and definitions” added;
— SAE AMS4967 added;
— Table 3 “Drive Codes” updated;
— 7.2 “Quality management system” updated;
— 7.3 “Qualification of screws” updated.
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, S
...