What should I pay attention to when purchasing double head bolts?

A double headed bolt is a bolt with two external threads, usually used to connect the surfaces of two components. Double headed bolts are usually used together with nuts to ensure a secure and secure connection. Double headed bolts have many advantages when used, such as ease of installation and use, quick disassembly and reinstallation, and offline addition and replacement. However, when purchasing stud bolts, the following precautions need to be taken to ensure safe and effective use of the bolts.

1. Choose the appropriate material: Double head bolts are usually made of different materials, including stainless steel, carbon steel, brass, etc. When selecting appropriate materials, it is necessary to consider the interface materials connected by the bolts and the requirements of the application environment. For example, when used in high-temperature environments, stainless steel is a better choice, while in low-cost applications, carbon steel can meet the demand.

2. Choose the appropriate size: Stud bolts have different diameters and lengths. When purchasing, it is necessary to determine the size and shape of the connected components, and select the appropriate bolt size. In addition, parameters such as bolt center distance and surface spacing need to be considered.

3. Understand various types of bolts: Stud bolts come in different types, such as fully threaded, semi threaded, partially threaded, etc. Various types of bolts are suitable for different applications. For example, full threads are suitable for applications that require higher firmness and stability, while partial threads are suitable for applications that require more torsion and throttling.

4. Confirm thread type: Stud bolts typically have different thread types, such as metric and inch threads. When selecting bolts, it is necessary to confirm the thread type of the components to be connected and select the corresponding type of bolt.

5. Confirm the pressure resistance and durability of the bolts: When selecting stud bolts, it is necessary to consider the durability and pressure resistance of the bolts. Because in some applications, bolts will be exposed to high-pressure environments, it is necessary to ensure that the bolts can withstand pressure testing without deformation.

6. Consider relevant standards and certifications: When selecting bolts, it is necessary to confirm whether the bolts comply with relevant standards and certifications. For example, some countries and regions need to comply with relevant ISO standards or CE certification standards. These standards and certifications ensure that bolts comply with international quality standards and safety requirements.

Summary:

When purchasing double headed bolts, multiple factors need to be considered to ensure that the bolts can work stably and efficiently in the application. When purchasing, it is necessary to confirm the material, size, type, and pressure resistance performance indicators of the bolts. At the same time, it is also necessary to confirm whether the bolts comply with relevant standards and certifications. These indicators can ensure the quality and reliability of bolts, thereby ensuring the stability and safety of applications.