Aerospace series - Bolts, T-head, relieved shank, long thread, in heat resisting steel, FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Unplated

This standard specifies the characteristics of T-head bolts with relieved shank and long thread, in FE-PM1708 (FV535), for aerospace applications.
Classification: 1 000 MPa  ) / 550 °C  ).

Luft- und Raumfahrt - T-Kopfschrauben, Dünnschaft, langes Gewinde, aus hochwarmfestem Stahl FE-PM1708 (FV535) - Klasse: 1 000 MPa/550 °C - Blank

Diese Norm legt die Eigenschaften von Sechskantschrauben mit Dünnschaft und langem Gewinde aus FE PM1708 (FV535) für Anwendungen in der Luft  und Raumfahrt fest.
Klasse: 1 000 MPa )/550 °C ).

Série aérospatiale - Vis à tête anti-rotation T, fût dégagé, filetage long, en acier résistant à chaud FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Non revêtues

Aeronavtika - Sorniki, glava T, tanko steblo, dolg navoj, iz toplotnoodpornega jekla, FE-PM1708 (FV535) - Klasifikacija: 1 000 MPa/550 °C - Brez prevleke

General Information

Status
Published
Publication Date
15-Jan-2008
ICS
49.030.20 - Bolts, screws, studs
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-Jan-2008
Due Date
14-Mar-2008
Completion Date
16-Jan-2008
Ref Project
EN 3325:2007 - Aerospace series - Bolts, T-head, relieved shank, long thread, in heat resisting steel, FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Unplated

Overview

EN 3325:2007 is a European aerospace standard that specifies the required characteristics for T-head bolts with a relieved shank and long thread manufactured in heat-resisting steel FE-PM1708 (FV535). The standard applies to unplated bolts classified to 1 000 MPa / 550 °C, intended for aerospace applications where high tensile strength and elevated temperature performance are required.

This standard focuses on configuration, dimensions, tolerances, material specification and marking to ensure interchangeability and traceability of critical fasteners used in the aerospace industry.

Key Topics

  • Scope and classification: Establishes the bolt type (T-head, relieved shank, long thread), material (FE-PM1708 / FV535) and the classification 1 000 MPa / 550 °C.
  • Configuration, dimensions and tolerances: Drawings and tables (Figures and Tables in the standard) define thread codes, length codes, dimensional tolerances and mass per 1 000 pieces to support procurement and design.
  • Material and referenced specifications: Material conformity is linked to EN 2493 and related FE-PM1708 documents; the standard references heat-resisting alloy specifications used for these bolts.
  • Designation and marking: Example designation format (e.g. EN3325-060-030) and marking requirements follow EN 2424 (category A) to ensure product identification and traceability.
  • Normative references: Key referenced documents include ISO 3353-1 (thread runout), ISO 5855-2 (MJ thread limit dimensions), EN 2424, EN 2493, EN 3302 and FE-PM1708 material standards.

Applications

  • Aerospace structural fastening: Suited for applications requiring a T-head form-factor and high-temperature resistance up to the specified test temperature.
  • Design and procurement: Engineers and buyers use EN 3325:2007 to specify compliant T-head bolts that meet dimensional, material, and marking requirements for interchangeability across vendors.
  • Maintenance and replacement: Maintenance teams rely on the designation and marking rules to identify correct replacement parts and to verify conformity during inspections.

Related Standards

  • ISO 3353-1 - Lead and runout threads (rolled external threads)
  • ISO 5855-2 - MJ threads - limit dimensions for bolts and nuts
  • EN 2424 - Marking of aerospace products (marking category A)
  • EN 2493, EN 3302, EN 4244, EN 4245 - Material and technical specifications related to FE-PM1708 (FV535)

For designers, procurement specialists and maintenance engineers, EN 3325:2007 provides a concise technical framework to select, specify and verify high-strength, heat-resisting T-head bolts for aerospace assemblies while ensuring conformity, interchangeability and traceability.

Frequently Asked Questions

SIST EN 3325:2008 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Bolts, T-head, relieved shank, long thread, in heat resisting steel, FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Unplated". This standard covers: This standard specifies the characteristics of T-head bolts with relieved shank and long thread, in FE-PM1708 (FV535), for aerospace applications. Classification: 1 000 MPa ) / 550 °C ).

This standard specifies the characteristics of T-head bolts with relieved shank and long thread, in FE-PM1708 (FV535), for aerospace applications. Classification: 1 000 MPa ) / 550 °C ).

SIST EN 3325:2008 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.

SIST EN 3325:2008 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)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Bolts, T-head, relieved shank, long thread, in heat resisting steel, FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - UnplatedAeronavtika - Sorniki, glava T, tanko steblo, dolg navoj, iz toplotnoodpornega jekla, FE-PM1708 (FV535) - Klasifikacija: 1 000 MPa/550 °C - Brez prevlekeSérie aérospatiale - Vis à tête anti-rotation T, fût dégagé, filetage long, en acier résistant à chaud FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Non revêtuesLuft- und Raumfahrt - T-Kopfschrauben, Dünnschaft, langes Gewinde, aus hochwarmfestem Stahl FE-PM1708 (FV535) - Klasse: 1 000 MPa/550 °C - BlankTa slovenski standard je istoveten z:EN 3325:2007SIST EN 3325:2008en49.030.20ICS:SLOVENSKI
STANDARDSIST EN 3325:200801-marec-2008

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3325
December 2007 ICS 49.030.20 English Version
Aerospace series - Bolts, T-head, relieved shank, long thread, in heat resisting steel, FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Unplated
Série aérospatiale - Vis à tête anti-rotation “T”, fût dégagé, filetage long, en acier résistant à chaud FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Non revêtues Luft- und Raumfahrt - T-Kopfschrauben, Dünnschaft, langes Gewinde, aus hochwarmfestem Stahl FE-PM1708 (FV535) - Klasse: 1 000 MPa/550 °C - Blank This European Standard was approved by CEN on 5 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 © 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3325:2007: E

1 140 MPa — Bars — Aerospace series. 4) EN 3302, Aerospace series — Bolts in heat r
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