EN 3328:2008

SLOVENSKI STANDARD
01-september-2008
Aeronavtika - Sorniki, dvojna šestroba glava, ozka toleranca, srednja navojna
dolžina, iz toplotnoodpornega jekla FE-PM38 (FV535), brez prevleke - Klasifikacija:
1 100 MPa/550 °C
Aerospace series - Bolts, double hexagon head, close tolerance, medium thread length,
in heat resisting steel FE-PM38 (FV535), uncoated - Classification: 1 000 MPa/550 °C
Luft-und Raumfahrt - Zwölftkant-Passschrauben, mittlere Gewindelänge, aus
hochwarmfestem Stahl FE-PM38 (FV535), blank - Klasse: 1 000 MPa/550 °C
Série aérospatiale - Vis de précision à tête bihexagonale à filetage moyen, en acier
résistant à chaud FE-PM38 (FV535), non revêtu - Classification: 1 000 MPa/550 °C
Ta slovenski standard je istoveten z: EN 3328:2008
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 3328
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2008
ICS 49.030.20
English Version
Aerospace series - Bolts, double hexagon head, close tolerance,
medium thread length, in heat resisting steel FE-PM38 (FV535),
uncoated - Classification: 1 000 MPa/550 °C
Série aérospatiale - Vis de précision à tête bihexagonale, à Luft-und Raumfahrt - Zwölftkant-Passschrauben, mittlere
filetage moyen, en acier résistant à chaud FE-PM38 Gewindelänge, aus hochwarmfestem Stahl FE-PM38
(FV535), non revêtu - Classification: 1 000 MPa/550 °C (FV535), blank - Klasse: 1 000 MPa/550 °C
This European Standard was approved by CEN on 3 November 2007.

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: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3328:2008: 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 Material.4
3.3 Surface treatment.4
3.4 Thread surface.4
4 Designation.8
5 Marking.8
6 Technical specification.8

Figures
Figure 1 — Configuration. 5

Tables
Table 1 — Dimensions. 6
Table 2 — Lengths and masses . 6

Foreword
This document (EN 3328:2008) 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,
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 November 2008, and conflicting national standards shall be withdrawn
at the latest by November 2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
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, 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 the United Kingdom.
1 Scope
This standard specifies the dimensions of the uncoated double hexagon head bolts, close tolerance, with MJ-
thread, medium thread length, in heat resisting steel FE-PM38 for aerospace applications.
Maximum test temperature of the parts is 550 °C.
These bolts are to be used in aerospace fastening systems mainly stressed in shearing force.
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.
1)
EN 2424, Aerospace series — Marking of aerospace products
EN 2493, Aerospace series — Heat resisting steel FE-PM38 — 1 000 MPa ≤ R ≤ 1 140 MPa — Bars
m
EN 3302, Aerospace series — Bolts in heat resisting steel FE-PM38 (FV535) — Classification:
1)
1 000 MPa/550 °C — Technical specification
ISO 3353-1, Aerospace — Lead and runout threads — Part 1: Rolled external threads
ISO 4095, Aerospace — Bihexagonal drives — Wrenching configuration — Metric series
ISO 5855-1, Aerospace — MJ threads — Part 1: General requirements
ISO 5855-2, Aerospace — MJ threads — Part 2: Limit dimensions for bolts and nuts
3 Required characteristics
3.1 Configuration, dimensions, tolerances, masses
Configuration shall be in accordance wit
...