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Homepage>BSI Standards >21 MECHANICAL SYSTEMS AND COMPONENTS FOR GENERAL USE>21.060 Fasteners>21.060.20 Nuts>BS EN ISO 7040:2025 Fasteners. Prevailing torque hexagon nuts. Regular nuts (with non-metallic insert)
immediate downloadReleased: 2025-06-26
BS EN ISO 7040:2025 Fasteners. Prevailing torque hexagon nuts. Regular nuts (with non-metallic insert)

BS EN ISO 7040:2025

Fasteners. Prevailing torque hexagon nuts. Regular nuts (with non-metallic insert)

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Standard number:BS EN ISO 7040:2025
Pages:18
Released:2025-06-26
ISBN:978 0 539 24901 9
Status:Standard
Pages (English):18
ISBN (English):978 0 539 24901 9
BS EN ISO 7040:2025 Fasteners

BS EN ISO 7040:2025 Fasteners - Prevailing Torque Hexagon Nuts

Introducing the BS EN ISO 7040:2025 standard, a comprehensive guide to prevailing torque hexagon nuts, specifically designed for regular nuts with a non-metallic insert. This standard is an essential resource for professionals in the fastener industry, providing detailed specifications and guidelines to ensure the highest quality and performance of hexagon nuts.

Key Features and Benefits

The BS EN ISO 7040:2025 standard is a crucial document for anyone involved in the design, manufacturing, or application of fasteners. Here are some of the key features and benefits:

  • Comprehensive Coverage: With 18 pages of detailed information, this standard covers all aspects of prevailing torque hexagon nuts, ensuring you have the knowledge needed to meet industry requirements.
  • Latest Release: Released on June 26, 2025, this standard reflects the most current practices and technological advancements in the fastener industry.
  • Non-Metallic Insert: The inclusion of a non-metallic insert in these nuts provides enhanced performance, offering superior resistance to loosening under vibration and dynamic loads.
  • International Standard: As a part of the ISO series, this standard is recognized globally, facilitating international trade and ensuring compatibility across borders.

Technical Specifications

The BS EN ISO 7040:2025 standard provides detailed technical specifications to ensure the optimal performance of prevailing torque hexagon nuts. These specifications include:

  • Standard Number: BS EN ISO 7040:2025
  • ISBN: 978 0 539 24901 9
  • Status: Standard

Applications and Use Cases

Prevailing torque hexagon nuts with non-metallic inserts are widely used in various industries due to their reliability and performance. Some common applications include:

  • Automotive Industry: Used in vehicle assembly to ensure components remain securely fastened under dynamic conditions.
  • Aerospace: Essential in aircraft manufacturing, where vibration resistance is critical for safety and performance.
  • Construction: Utilized in building and infrastructure projects to provide secure fastening solutions.
  • Machinery and Equipment: Ideal for use in heavy machinery and equipment where vibration and dynamic loads are prevalent.

Why Choose BS EN ISO 7040:2025?

Choosing the BS EN ISO 7040:2025 standard ensures that you are using a product that meets the highest international standards for quality and performance. This standard provides peace of mind, knowing that your fasteners are designed to withstand the rigors of their intended applications.

By adhering to this standard, manufacturers and engineers can ensure that their products are reliable, safe, and efficient, reducing the risk of failure and enhancing the overall quality of their projects.

Conclusion

The BS EN ISO 7040:2025 standard is an indispensable resource for anyone involved in the fastener industry. With its comprehensive coverage, up-to-date information, and international recognition, it provides the guidance needed to produce and use prevailing torque hexagon nuts with confidence.

Whether you are a manufacturer, engineer, or industry professional, this standard is your key to ensuring the highest quality and performance in your fastener applications. Invest in the BS EN ISO 7040:2025 standard today and take the first step towards excellence in your projects.

DESCRIPTION

BS EN ISO 7040:2025


This standard BS EN ISO 7040:2025 Fasteners. Prevailing torque hexagon nuts. Regular nuts (with non-metallic insert) is classified in these ICS categories:
  • 21.060.20 Nuts
This document specifies the characteristics of prevailing torque hexagon regular nuts (with non?metallic insert), in steel and stainless steel, with metric coarse pitch thread M3 to M39, and with product grades A and B. NOTE            These nuts are designed with an overall height equal to mmin (as specified in ISO 898-2 and ISO 4032 for style 1) plus the prevailing torque feature. The height of the prevailing torque feature (hmax – mmin) for the non-metallic insert is identical for regular, high and thin nuts for a given diameter. Nuts with sizes D < M5 and design principles in accordance with style 1 are specified in Annex A. If in certain cases other specifications are requested, property classes and stainless steel grades can be selected from ISO 898-2 or ISO 3506-2.