Aerospace series - Inserts, screw thread, helical coil, self-locking - Assembly procedure

This standard specifies the assembly procedure (tools and inspection) for self-locking, helical coil, screw thread inserts defined by EN standards, for aerospace applications.

Luft- und Raumfahrt - Draht-Gewindeeinsätze, selbstsichernd - Einbauverfahren

Diese Norm legt das Einbauverfahren (Werkzeuge und Prüfung) für selbstsichernde Draht-Gewindeeinsätze nach EN-Normen zur Verwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Filets rapportés, a freinage interne - Procédure de montage

La présente norme spécifie la procédure de montage (outils de contrôle) des filets rapportés à freinage interne définis par des normes EN, pour applications aérospatiales.

Aerospace series - Inserts, screw thread, helical coil, self-locking - Assembly procedure

General Information

Status
Published
Publication Date
31-Dec-2000
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-Jan-2001
Due Date
01-Jan-2001
Completion Date
01-Jan-2001
Ref Project
EN 2945:1998 - Aerospace series - Inserts, screw thread, helical coil, self-locking - Assembly procedure

Overview

SIST EN 2945:2001 is a European standard developed by CEN, focused on aerospace quality and safety requirements. It details the assembly procedure for self-locking, helical coil screw thread inserts used in aerospace components. These inserts improve fastening reliability by providing secure, wear-resistant threads in materials that cannot otherwise sustain repeated use of screw threads. The standard covers recommended tools, installation steps, and inspection methods to ensure consistent and safe integration of these inserts in aerospace assemblies.

Key Topics

  • Self-locking helical coil inserts: A type of threaded insert designed to resist loosening under vibration and stress - critical for aerospace applications.
  • Assembly procedure: Step-by-step methodology for proper installation including tooling specifications to maintain insert integrity and performance.
  • Inspection protocols: Guidelines for verifying correct installation, ensuring that inserts meet dimensional and locking requirements.
  • Compatibility: Inserts aligned with other EN aerospace standards, guaranteeing interoperability and quality assurance.
  • Tooling requirements: Defines specialized tools for installation to prevent damage and achieve consistent torque and positioning.

Applications

SIST EN 2945:2001 is essential for aerospace manufacturers, maintenance providers, and quality assurance professionals who work with threaded fastener systems in:

  • Aircraft structural assemblies
  • Engine components requiring frequent disassembly
  • Aerospace equipment exposed to high vibration and thermal cycling
  • Components made from lightweight or soft materials such as aluminum alloys and composites where standard threads wear quickly
  • Repair and overhaul operations where reliable thread restoration is needed

Using the procedures defined by EN 2945 ensures joint safety, reduces risk of fastener failure, and extends service life of aerospace connections, enhancing overall aircraft reliability.

Related Standards

For comprehensive aerospace fastener and thread insert management, SIST EN 2945:2001 is commonly used alongside:

  • EN 3675 - Aerospace series: Threaded inserts for composite materials
  • EN 20898 - Mechanical properties of fasteners for aerospace applications
  • EN 4179 - Qualification and approval of personnel for non-destructive testing, ensuring inspection quality
  • ISO 9001 - Quality management systems in aerospace manufacturing
  • Other EN standards covering fasteners, coatings, and dimensional tolerances related to threaded assemblies

By following SIST EN 2945:2001 alongside these complementary standards, aerospace manufacturers optimize assembly procedures for safety, performance, and regulatory compliance.

Keywords: SIST EN 2945:2001, aerospace inserts, helical coil inserts, self-locking screw thread, assembly procedure, aerospace fasteners, thread insert installation, aerospace standards, CEN aerospace standards, screw thread inserts aerospace

Frequently Asked Questions

SIST EN 2945:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Inserts, screw thread, helical coil, self-locking - Assembly procedure". This standard covers: This standard specifies the assembly procedure (tools and inspection) for self-locking, helical coil, screw thread inserts defined by EN standards, for aerospace applications.

This standard specifies the assembly procedure (tools and inspection) for self-locking, helical coil, screw thread inserts defined by EN standards, for aerospace applications.

SIST EN 2945:2001 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 2945:2001 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 - Inserts, screw thread, helical coil, self-locking - Assembly procedureLuft- und Raumfahrt - Draht-Gewindeeinsätze, selbstsichernd - EinbauverfahrenSérie aérospatiale - Filets rapportés, a freinage interne - Procédure de montageAerospace series - Inserts, screw thread, helical coi
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