What are the different types of flange bolts?

There are several different types of flange bolts available, each with its own design and characteristics. Here are some common types of flange bolts:

1. Hex Flange Bolts: These bolts have a hexagonal head with a built-in flange washer beneath it. The flange washer provides a larger bearing surface and helps distribute the load, reducing the risk of joint failure. Hex flange bolts are widely used in various applications.

2. Serrated Flange Bolts: These bolts have serrations or ridges beneath the flange washer. The serrations create a locking effect when tightened, helping to prevent loosening due to vibration or external forces. Serrated flange bolts are often used in applications where vibration resistance is critical.

3. Frame Bolts: Frame bolts, also known as carriage bolts or coach bolts, have a rounded, domed head and a square section beneath it. They are designed to be used with a corresponding square hole or slot in the material being fastened. Frame bolts are commonly used in woodworking and construction applications.

4. T-Slot Bolts: T-slot bolts have a unique T-shaped head that fits into T-slot tracks or channels. They are frequently used in machine tool setups, workholding devices, and other applications where components need to be securely fastened to T-slot extrusions or profiles.

5. JIS Flange Bolts: JIS (Japanese Industrial Standard) flange bolts follow specific Japanese standards for dimensions and materials. They are commonly used in Japan and can have different head styles, such as hex flange bolts or hexagon socket flange bolts, depending on the specific JIS standard.

6. Custom Flange Bolts: In some cases, custom flange bolts may be manufactured to meet specific requirements of a project or application. These bolts can have unique head designs, dimensions, or materials to suit the specific needs of the flanged joint.

It's important to select the appropriate type of flange bolt based on the specific requirements of your application, considering factors such as load capacity, vibration resistance, head style, and compatibility with the flange or joint design. Always refer to the manufacturer's recommendations and industry standards when choosing flange bolts for a particular project.