SIST EN 4132:2009

Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature)/235 °C

This standard specifies the characteristics of bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated.
Classification: 1 100 MPa  / 235 °C

Luft- und Raumfahrt - Sechskantschrauben, langes Gewinde, aus legiertem Stahl, verkadmet - Klasse: 1100 MPa (bei Raumtemperatur)/235 °C

Diese Norm legt die Eigenschaften von Sechskantschrauben mit langem Gewinde aus legiertem Stahl,
verkadmet, fest.
Klasse: 1 100 MPa1) / 235 °C2)

Série aérospatiale - Vis à tête hexagonale normale, tige normale à tolérance large, filetage long, en acier allié, cadmiées - Classification: 1100 MPa (à température ambiante)/235 °C

Aeronavtika - Sorniki, normalna šestroba glava, široka toleranca, dolg navoj, iz legiranega jekla, kadmirani - Klasifikacija: 1100 MPa (pri temperaturi okolice)/235 °C

General Information

• Status: Published
• Publication Date: 06-Sep-2009
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 18-Aug-2009
• Due Date: 23-Oct-2009
• Completion Date: 07-Sep-2009
• Ref Project: EN 4132:2009 - Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C

Overview

SIST EN 4132:2009 is a European standard developed by CEN that defines the specifications for aerospace bolts featuring a normal hexagonal head, coarse tolerance normal shank, and long thread. These bolts are manufactured from alloy steel and are cadmium plated to ensure optimal corrosion resistance. Classified to withstand a tensile strength of 1100 MPa at ambient temperature and maintain performance stability up to 235 °C, this standard is critical for aerospace applications demanding high strength and reliability.

The standard ensures dimensional accuracy, mechanical performance, and surface treatment requirements are met to support the rigorous operational environments found in aerospace engineering.

Key Topics

• Bolt Configuration and Dimensions
  EN 4132 defines exact dimensions, mass, and tolerances for bolts with normal hexagonal heads and long threaded shanks. Threads conform to aerospace-specific standards such as ISO 3353-1 for rolled external threads and ISO 5855-2 for limit dimensions.

• Material Requirements
  Alloy steel materials meet classification criteria for a minimum tensile strength of 1100 MPa, as outlined in standards including EN 2137 and EN 3514. The materials are selected to provide mechanical strength and durability under aerospace stresses.

• Surface Treatment
  Cadmium plating is mandated according to EN 2133, with a coating thickness between 8 µm and 14 µm on surfaces engageable by a 20 mm ball. This treatment enhances corrosion protection and contributes to temperature resistance, supporting performance up to 235 °C.

• Tolerances and Quality Control
  Form and positional tolerances comply with ISO 7913 to ensure precise fitting and assembly. The bolts undergo rigorous quality management in line with EN 9100 and qualification procedures of EN 9133 to guarantee consistent aerospace-grade quality.

• Marking and Designation
  Marking of bolts follows EN 2424 to support traceability and identification. The designation system incorporates key attributes such as diameter, length, hole codes, and optional black color plating.

Applications

SIST EN 4132:2009 bolts are designed primarily for aerospace industry use, playing a critical role in:

• Aircraft structural assembly where high tensile strength and temperature resilience are essential
• Engine and airframe fastening systems requiring precision threads and corrosion resistance
• Aerospace manufacturing lines adhering to strict quality and material controls
• Environments exposed to elevated temperatures up to 235 °C without material degradation

These bolts contribute to the safety, reliability, and longevity of aerospace vehicles operating under demanding conditions.

Related Standards

SIST EN 4132:2009 references and complements several other aerospace standards and specifications, including:

• EN 2133 – Aerospace series for cadmium plating on steel and alloys
• EN 2137 & EN 3514 – Specifications for alloy steel materials with required tensile strengths
• EN 2424 – Aerospace product marking for traceability
• ISO 3353-1 & ISO 5855-2 – Aerospace thread standards for precision and compatibility
• ISO 7689 – Procurement specifications for aerospace bolts made of alloy steel
• ISO 7913 – Tolerances of form and position for aerospace bolts and screws
• EN 9100 & EN 9133 – Quality management systems and qualification procedures tailored for aerospace parts

Compliance with SIST EN 4132:2009 ensures that bolts meet the stringent demands of aerospace applications, enhancing safety and operational performance through standardized design and manufacturing practices.

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Keywords: SIST EN 4132:2009, aerospace bolts, hexagonal head bolts, alloy steel bolts, cadmium plated bolts, aerospace fasteners, 1100 MPa tensile strength, aerospace standards, ISO aerospace threads, aerospace quality management, high-temperature bolts, coarse tolerance shank bolts

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Sorniki, normalna šestroba glava, široka toleranca, dolg navoj, iz legiranega jekla, kadmirani - Klasifikacija: 1100 MPa (pri temperaturi okolice)/235 °CLuft- und Raumfahrt - Sechskantschrauben, langes Gewinde, aus legiertem Stahl, verkadmet - Klasse: 1100 MPa (bei Raumtemperatur)/235 °CSérie aérospatiale - Vis à tête hexagonale normale, tige normale à tolérance large, filetage long, en acier allié, cadmiées - Classification: 1100 MPa (à température ambiante)/235 °CAerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature)/235 °C49.030.20Sorniki, vijaki, stebelni vijakiBolts, screws, studsICS:Ta slovenski standard je istoveten z:EN 4132:2009SIST EN 4132:2009en,de01-oktober-2009SIST EN 4132:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4132
July 2009 ICS 49.030.20 English Version
Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C
Série aérospatiale - Vis à tête hexagonale normale, tige normale à tolérance large, filetage long, en acier allié, cadmiées - Classification: 1 100 MPa (à température ambiante) / 235 °C
Luft- und Raumfahrt - Sechskantschrauben, langes Gewinde, aus legiertem Stahl, verkadmet - Klasse : 1 100 MPa (bei Raumtemperatur) / 235 °C This European Standard was approved by CEN on 23 April 2009.
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:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4132:2009: ESIST EN 4132:2009
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