Hex flange head screws with glue are a specific type of fastener that combines the features of a hexagonal flange head and an adhesive coating：

1. Hexagonal flange head: These screws have a flange attached to the head, which provides a larger bearing surface. The flange distributes the load over a wider area, reducing the risk of the fastener damaging the material it is being attached to. The hexagonal shape allows for easy tightening using a wrench or socket.

2. Adhesive coating: Hex flange head screws with glue are coated with a special adhesive material on the threads. This adhesive provides additional resistance to loosening caused by vibrations or other external forces. The glue helps to maintain a secure and tight connection between the screw and the material it is fastened into.

3. Increased holding power: The combination of the flange head and the adhesive coating significantly enhances the holding power of these screws. The flange prevents the screw from sinking into the material, while the adhesive coating adds an extra layer of security by preventing the screw from backing out or becoming loose over time.

4. Versatility: Hex flange head screws with glue can be used in a variety of applications. They are commonly used in automotive, construction, and industrial settings where vibration resistance and a secure fastening are crucial. These screws are suitable for both metal-to-metal and metal-to-plastic connections.

5. Easy installation: These screws are relatively easy to install with the help of a wrench or socket, as the hexagonal head provides a convenient gripping surface. The adhesive coating eliminates the need for additional locking mechanisms, such as lock washers or thread-locking compounds, simplifying the installation process.

Hex flange head screws with glue offer a combination of strength, vibration resistance, and ease of installation, making them a popular choice for various applications where secure fastening is required.