When it comes to fasteners, there are a wide variety of sizes and types available. In fact, the range of sizes can be overwhelming for those who are not familiar with fasteners. Fortunately, there are some common metric fastener sizes that are used in many applications. In this article, we will take a look at some typical metric fastener sizes and where they are commonly used.
Metric Fastener Sizes
Metric fastener sizes are measured in millimeters (mm). Here are some of the most common sizes:
1. M3 - This is a small size commonly used in electronics and small machinery.
2. M4 - A slightly larger size than M3, M4 is used in a wide range of applications.
3. M5 - This is a medium-sized fastener that is often used in automotive and machinery applications.
4. M6 - A larger size than M5, M6 is commonly used in structural applications such as building and construction.
5. M8 - This is another common size used in construction, as well as automotive and machinery applications.
Where to Use Metric Fasteners
There are many areas where metric fasteners are widely used. Here are some common applications for metric fasteners:
1. Automotive - Metric fasteners are commonly used in automobiles because they are easy to work with and are designed to withstand high temperatures and extreme pressure.
2. Construction - Metric fasteners are commonly used in construction because they are strong, durable and can withstand heavy loads.
3. Machinery - As mentioned, metric fasteners are commonly used in machinery because they can withstand the high levels of stress that are typical of these applications.
4. Electronics - Metric fasteners are perfect for smaller electronics applications because they are small and can be easily sealed to prevent moisture and dust from getting inside.
5. Aerospace - Metric fasteners are commonly used in the aerospace industry because they are strong, durable and can withstand extreme conditions.
How to Choose the Right Fastener Size
Choosing the right fastener size is important to ensure that the fastener can withstand the loads it will be subjected to. Here are some tips for choosing the right fastener size:
1. Determine the load - It is important to know the load that the fastener will be subjected to. This will help you choose the right size and strength of fastener.
2. Know the application - Different applications require different types of fasteners. For example, an automotive application may require a different type of fastener than a construction application.
3. Look at the material - The material that the fastener will be inserted into is also important. Harder materials such as steel will require a different type of fastener than a softer material such as wood.
4. Consider environmental conditions - Environmental conditions can also affect the choice of fastener. For example, if the application is exposed to moisture, a rust-resistant fastener may be necessary.
5. Seek professional advice - If you are unsure about which fastener size to choose, seek advice from a professional. A qualified mechanic or engineer can help you choose the right fastener size for your application.
Metric fasteners are commonly used in a wide range of applications, including automotive, construction, machinery, electronics, and aerospace. Understanding the typical metric fastener sizes and their applications can help you choose the right size and strength of fastener for your application. Remember to consider the load, application, material, environmental conditions, and seek professional advice if necessary..