Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C

This standard specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating.
Classification: 1 100 MPa / 315 °C

Luft- und Raumfahrt - Flachkopf-Passschrauben, mit Flügelkreuzschlitz, kurzes Gewinde, aus Titanlegierung, anodisiert, mit aluminiumpigmentierter Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 °C

Diese Norm legt die Eigenschaften von Flachkopf-Passschrauben mit Flügelkreuzschlitz und kurzem Gewinde, aus Titanlegierung, anodisiert, mit aluminiumpigmentierter Beschichtung fest.
Klasse: 1 100 MPa ) /315 °C )

Série aérospatiale - Vis a tete cylindrique, a empreinte cruciforme déportée, fut normal a tolérance serrée, filetage court, en alliage de titane, anodisées, avec revetement alumino-organique - Classification : 1 100 MPa (a température ambiante) / 315 °C

Aeronavtika – Vijaki, zaobljena valjasta glava, križna zareza, polno steblo, ozka toleranca, kratek navoj, iz titanove zlitine, anodizirani, z aluminijem pigmentiranim premazom – Klasifikacija: 1 100 MPa (pri temperaturi okolice) / 315 °C

General Information

Status
Published
Publication Date
31-Aug-2006
ICS
49.025.20 - Aluminium
 
49.025.30 - Titanium
 
49.030.20 - Bolts, screws, studs
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Sep-2006
Due Date
01-Sep-2006
Completion Date
01-Sep-2006
Ref Project
EN 4497:2005 - Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C

Overview

SIST EN 4497:2006 is a European aerospace standard that defines the specifications for high-performance screws used in aerospace applications. These screws feature a pan head with an offset cruciform recess, a close tolerance normal shank, and a short thread design. Manufactured from a titanium alloy, the screws are anodized and finished with an aluminum pigmented coating. The standard classifies these fasteners at a minimum tensile strength of 1,100 MPa at ambient temperature and specifies functionality up to 315 °C. This comprehensive standard aims to ensure the consistent quality, performance, and reliability critical for aerospace manufacturing and maintenance.

Key Topics

  • Material and Coating: Screws are made from titanium alloy conforming to strength class 1,100 MPa, known for its lightweight, high strength, and corrosion resistance. Anodizing and an aluminum pigmented coating enhance surface durability and oxidation resistance, optimizing performance under harsh aerospace environments.

  • Design and Dimensions: The standard specifies detailed dimensions, including pan head size, offset cruciform recess for secure torque application, and close tolerances on the normal shank and short thread length. Dimensional limits are outlined in millimeters with strict tolerances to ensure interchangeability and precise fitting.

  • Mechanical Performance: Screws must sustain at least 1,100 MPa tensile strength at room temperature and maintain structural integrity up to 315 °C, accommodating the thermal demands of aerospace components.

  • Manufacturing and Quality Control: The standard references aerospace quality management systems such as EN 9100 and EN 9133 to ensure proper manufacturing practices, manufacturer approval, and component qualification procedures.

  • Marking and Identification: Each screw is marked in accordance with EN 2424 to facilitate traceability. Marking includes diameter codes, drive type, and material identity.

Applications

  • Aerospace Manufacturing: Ideal for assembly of aircraft frames, engines, and critical components where strength-to-weight ratio and resistance to temperature extremes are paramount.

  • Maintenance and Repair: Used in maintenance, repair, and overhaul (MRO) activities requiring fasteners that meet rigorous aerospace standards and withstand operational stresses.

  • Advanced Engineering Projects: Suitable for aerospace research applications needing reliable fasteners with documented quality standards and stringent dimensional accuracy.

Related Standards

  • ISO 3353-1: Lead and runout threads for rolled external threads
  • ISO 5855-2: Limit dimensions for bolts and nuts with MJ threads
  • ISO 7913: Tolerances of form and position for aerospace bolts and screws
  • ISO 7994: Offset cruciform recess (Torq-Set®) internal drives for rotary fastening devices
  • ISO 9152: Procurement specification for bolts with MJ threads in titanium alloys
  • EN 2424: Marking guidelines for aerospace products
  • EN 4016: Standard for oversized aerospace bolts
  • EN 4474: Methods for aluminum pigmented coatings on aerospace parts
  • EN 9100 / EN 9133: Aerospace quality management system requirements and qualification procedures
  • MIL-L-87132B: Specification for lubricants (cetyl alcohol) applied to fasteners

By adhering to SIST EN 4497:2006, aerospace manufacturers and suppliers ensure that their titanium alloy screws meet stringent requirements for strength, durability, and traceability. This contributes significantly to the safety and longevity of aerospace assemblies operating under demanding environmental and mechanical conditions.

Frequently Asked Questions

SIST EN 4497:2006 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C". This standard covers: This standard specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating. Classification: 1 100 MPa / 315 °C

This standard specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating. Classification: 1 100 MPa / 315 °C

SIST EN 4497:2006 is classified under the following ICS (International Classification for Standards) categories: 49.025.20 - Aluminium; 49.025.30 - Titanium; 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 4497:2006 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.Aeronavtika – Vijaki, zaobljena valjasta glava, križna zareza, polno steblo, ozka toleranca, kratek navoj, iz titanove zlitine, anodizirani, z aluminijem pigmentiranim premazom – Klasifikacija: 1 100 MPa (pri temperaturi okolice) / 315 °CLuft- und Raumfahrt - Flachkopf-Passschrauben, mit Flügelkreuzschlitz, kurzes Gewinde, aus Titanlegierung, anodisiert, mit aluminiumpigmentierter Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 °CSérie aérospatiale - Vis a tete cylindrique, a empreinte cruciforme déportée, fut normal a tolérance serrée, filetage court, en alliage de titane, anodisées, avec revetement alumino-organique - Classification : 1 100 MPa (a température ambiante) / 315 °CAerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C49.030.20Sorniki, vijaki, stebelni vijakiBolts, screws, studs49.025.30TitanTitanium49.025.20AluminijAluminiumICS:Ta slovenski standard je istoveten z:EN 4497:2005SIST EN 4497:2006en01-september-2006SIST EN 4497:2006SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4497
December 2005 ICS 49.030.20 English Version
Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, with aluminium pigmented coating - Classification: 1 100 MPa (at ambient temperature) / 315 °C
Série aérospatiale - Vis à tête cylindrique, à empreinte cruciforme déportée, fût normal à tolérance serrée, filetage court, en alliage de titane, anodisées, avec revêtement alumino-organique - Classification : 1 100 MPa (à température ambiante) / 315 °C
Luft- und Raumfahrt - Flachkopf-Paßschrauben, mit Flügelkreuzschlitz, kurzes Gewinde, aus Titanlegierung, anodisiert, mit Aluminium pigmenttete Beschichtung - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 °C This European Standard was approved by CEN on 26 October 2005.
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
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B-1050 Brussels © 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4497:2005: ESIST EN 4497:2006
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