Custom Flange Bolts Company

● Flange bolts are the bolts with hexagonal head and have a wider surface area under the head to provide for an even distribution of clamping pressure. This wider surface acts like a washer, eliminating the need to combine one with this kind of bolt. Due to the material characteristics of the flange bolt, it can withstand high tensile, compressive, torsional and shear strength.

● We support customized and can also manufacture non-standard fasteners according to your drawings.


 Half Thread (Partial Thread) , Full Thread.


 DIN, ASTM/ANSI, JIS, ISO, GB and so on.


 Dia M5 - M16 & Lengths 10mm - 140mm


 Metric Coarse & Fine


 Property Class 4.8, 8.8, 10.9, 12.9


 Q195, 35K, 10B21,40Cr, 35CrMo

Surface Treatment

 Plain, Zinc Plated , Blackening, Ni Plated, Dacromet.


 Structural Steel; Metal Building; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc.

Taizhou First Rivet Co.,Ltd.
As a famous China Flange Bolts Factory and Custom Flange Bolts Company,Taizhou First Rivet Co.,Ltd. founded in 1991, is a specializes in researching, developing, producing and selling bolts and rivets manufacturers and factory. It covers an area of 13,834 square meters and has convenient transportation.

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Our main customers are domestic first-class and second-class OEM suppliers, and our automobile hollow rivets and other products are exported to
Europe, America,the Middle East, Africa, Southeast Asia and more than 20 countries.

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Industry Knowledge Extension

The Benefits of Using Flange Bolts in Structural Applications

Flange bolts are essential components used in various structural applications, such as construction, machinery, and automotive. These bolts are designed to provide a secure and tight connection between two surfaces, preventing the loss of tension and ensuring the stability and safety of the structure. Flange bolts have several advantages over standard bolts, making them an ideal choice for structural applications.

The main benefit of using flange bolts is their ability to distribute the load over a larger surface area, reducing the stress on the bolt and the joint. The flange on the bolt head provides a wider surface area for the load to be distributed, resulting in a stronger and more secure connection. This feature is particularly useful in applications where the joint is subjected to heavy loads or vibration.

Flange bolts also have a higher resistance to corrosion and are more durable than standard bolts. The flange provides an extra layer of protection against corrosion and rust, ensuring the longevity and reliability of the connection. This feature makes flange bolts ideal for use in outdoor or harsh environments.

Another advantage of flange bolts is their ease of installation. The flange on the bolt head acts as a built-in washer, eliminating the need for additional washers or spacers. This feature not only saves time during installation but also reduces the risk of errors and ensures a consistent and accurate installation.

Flange bolts come in various sizes and materials, making them suitable for a wide range of applications. They are available in both metric and standard sizes and can be made from materials such as stainless steel, titanium, and alloy steel. This versatility makes flange bolts an ideal choice for applications with specific requirements, such as high-temperature or corrosive environments.

How to Choose the Right Flange Bolt for Your Application?

Flange bolts are an essential component in many mechanical applications. They provide a strong, secure connection between two or more parts and help to prevent loosening or failure due to vibration or other forces. However, choosing the right flange bolt for your application is crucial to ensure optimal performance and safety.

(1) Size and Strength: One of the most critical factors to consider when selecting a flange bolt is the size and strength of the bolt. The bolt must be able to withstand the maximum load or stress that it will be exposed to in the application. Choosing a bolt that is too small or weak can lead to failure and potentially dangerous situations. On the other hand, selecting a bolt that is too large or strong can add unnecessary weight and cost to the application.

(2) Material: The material of the flange bolt is another important consideration. The bolt must be made from a material that can withstand the environment and conditions in which it will be used. For example, if the application will be exposed to high temperatures, a bolt made from a heat-resistant material such as stainless steel may be required. Likewise, if the application will be exposed to corrosive materials, a bolt made from a corrosion-resistant material such as titanium may be necessary.

(3) Thread Type: The thread type of the flange bolt is also essential to consider. The bolt must have a thread type that is compatible with the nuts or other components that will be used in the application. Choosing the wrong thread type can lead to difficulty during installation, potential damage to the bolt or other components, and even failure of the connection.

(4) Flange Type: Finally, the type of flange on the bolt is also an important consideration. Flange bolts can have a variety of flange types, including serrated, non-serrated, and ribbed. The type of flange chosen should be based on the application's specific requirements, such as the need for anti-vibration properties or the need for a flush surface.

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