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What is M20 Thread Size?

What is M20 Thread Size?

Demystifying the M20 Thread Size: A Crucial Metric Standard in Engineering

Threads are the unsung heroes of engineering, enabling the secure assembly of various components. Among the array of thread sizes, the M20 thread stands out as a significant metric standard widely utilized in diverse industries. Let’s delve into the specifics of the M20 thread size to understand its dimensions, applications, and significance in engineering and manufacturing.

Understanding the M20 Thread Size:

The designation “M20” refers to a metric thread size. In the metric system, the “M” signifies metric, while the number following it denotes the nominal outer diameter of the screw or bolt in millimeters. Therefore, an M20 thread has a nominal outer diameter of 20 millimeters.

Specifications of M20 Threads:

  • Nominal Diameter: The M20 thread has a nominal outer diameter of 20 millimeters, making it relatively robust and suitable for applications requiring higher load-bearing capacities.
  • Pitch: The pitch of an M20 thread can vary. For instance, an M20x2.5 thread has a pitch of 2.5 millimeters, indicating the distance between adjacent threads.
  • Thread Design: The M20 thread follows the standard metric thread profile, featuring a V-shaped profile with consistent angles and pitch, ensuring effective engagement and stability when fastening components.

Applications of M20 Threads:

  • Construction and Infrastructure: M20 bolts and screws are extensively used in construction and infrastructure projects. They play a crucial role in securing structural elements due to their robustness and reliability.
  • Heavy Machinery: The M20 thread size finds applications in heavy machinery, where its larger diameter and strength are essential for securely holding components together under significant loads and vibrations.
  • Manufacturing and Assembly: Industries such as automotive and manufacturing employ M20 threads in various assembly processes, ensuring secure fastening of components, machinery, and equipment.

Importance of Standardization:

  • Uniformity: Standardization of metric thread sizes like M20 ensures interchangeability and compatibility across different products and industries, streamlining manufacturing and assembly processes.
  • Reliability: The adherence to standard dimensions and pitches in M20 threads guarantees reliability and consistency in securing components, contributing to the structural stability and safety of assemblies.


The M20 Thread Size, with its robust dimensions and standardized specifications, holds a pivotal place in engineering and manufacturing. Its widespread use across diverse industries signifies its importance in ensuring the integrity, reliability, and safety of assembled components and structures.

Whether it’s securing critical components in infrastructure, heavy machinery, or precision instruments, the M20 thread size continues to serve as a cornerstone in the world of fasteners, offering strength, reliability, and uniformity across various applications.

In essence, understanding the specifications and applications of the M20 thread size is vital for engineers, manufacturers, and construction professionals, as it remains an indispensable component in ensuring the stability and reliability of diverse assemblies.

Bhansali Metalloys Inc is one of the leading Manufacturer, Exporters, and Suppliers of High Quality M20 Thread Size all over in India. We are Manufacturer, Supplier and Dealer of various types of Fasteners such as Bolts, Nuts, Threaded Rods, Screws, Washers and many more. We are M20 Thread Size Manufacturer in India. These M20 Thread Size are available in different grades and materials. We are ASME Fasteners Manufacturer, Supplier, Dealer, and Exporter in India. We are M20 Thread Size Supplier in India. Contact Us +919152160158 or email to for M20 Thread Size price list.

For our full list of products that we offer check out our website here. Be sure to join the conversation in our Facebook, Instagram, Twitter, LinkedIn Group.

Each Stainless Steel M20 Thread Size is otherwise designed based on the characteristics of the applying and additionally the pressure. Consequently, different industries use different M20 Thread Size. We also produce customized M20 Thread Size Products at our factory as per our client’s requirements. For any types of M20 Thread Size Price List Call on +91 9152160158 or drop an Email to |

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