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home / News / Industry News / How to choose the right Internally Threaded Head Screw Bolt specification?

How to choose the right Internally Threaded Head Screw Bolt specification?

Choosing the right Internally Threaded Head Screw Bolt specification is a process that requires a combination of factors. Here are some key steps and points to help you make an informed choice:

1. Determine the basic size required
Diameter: When choosing the diameter, the thickness of the connecting parts and the required load-bearing capacity should be considered. Smaller diameters may not be suitable for applications that require high load-bearing capacity.
Length: The length of the bolt should be determined based on the total distance between the connecting parts, including the thickness of the material that needs to be passed through and any additional space requirements.
2. Consider the material
Material type: Choose the appropriate material based on the application environment. For example, stainless steel is suitable for corrosion-resistant environments, while carbon steel is suitable for most general applications.
Strength grade: Choose the appropriate strength grade based on the required load-bearing capacity and safety factor. Different materials have different strength grades.
3. Determine the thread type
UNC and UNF: UNC (Unified Coarse) and UNF (Unified Fine) are two commonly used thread standards in the United States. UNC threads have rounded tops and are suitable for connecting thicker parts, while UNF threads are thinner and are suitable for connecting thin plates, etc.
Other standards: There are other international thread standards, such as ISO standards, which you may want to consider to ensure compatibility with global suppliers.
4. Consider head type and style
Head type: For example, flat head, round head, half round head, etc., each type has its specific uses and advantages and disadvantages.
Style: Some head styles may include specific tool interfaces, such as hexagonal heads for wrenches or screwdrivers.
5. Special needs
Environmental adaptability: If your application involves special environments (such as high temperatures, corrosive environments), you need to choose bolts that can work properly under these conditions.
Certification and compliance: Some industries may require specific certifications or compliance marks. Make sure the bolts you choose meet all applicable regulations and standards.