Product Selection Differences for Metric Bolts

When selecting metric bolts, there are several key factors to consider. Here are some of the key differences to keep in mind:

1. Size and Thread Pitch: Metric bolts are sized according to their diameter, thread pitch, and length. The most common metric bolt sizes are M6, M8, M10, M12, etc. The thread pitch refers to the distance between threads on the bolt and varies depending on the bolt size.

2. Strength Grade: Metric bolts are available in different strength grades, such as 4.6, 8.8, 10.9, and 12.9. The strength grade indicates the bolt's tensile strength and ability to withstand loading. Higher grades offer greater strength but may also be more brittle.

3. Material: Metric bolts can be made from various materials, including carbon steel, stainless steel, and alloy steel. The choice of material will depend on the application requirements, such as corrosion resistance, strength, and environmental conditions.

4. Head Style: Metric bolts come in different head styles, such as hex, flange, and socket head. The head style will impact the tool required for installation and the finished appearance of the connection.

5. Coating: Bolts can be coated to improve corrosion resistance or provide lubrication during installation. Common coatings include zinc plating, galvanization, and black oxide.

6. Application: Consider the specific application requirements, such as load-bearing capacity, environmental conditions, and the type of materials being fastened together. Selecting the right metric bolt ensures a secure and durable connection.

By considering these factors, you can choose the most suitable metric bolt for your specific needs. It's essential to consult with industry experts or refer to technical specifications to ensure the correct selection for your application.