These bolts feature a hexagonal head with a flange that has teeth-like serrations. The teeth on the flange enhance the bolt's self-locking capabilities, preventing it from loosening due to vibration. The flange also distributes the load over a larger area, reducing pressure on the joint surface and protecting it from damage.

Material: including carbon steel, alloy steel, stainless steel (such as 304, 316, 316L, etc.) and other materials, the specific selection depends on the working environment and application requirements.

Grade: The product grade is divided into A grade and B grade, as well as different mechanical properties grade (such as 4.8 grade, 8.8 grade, 10.9 grade,A2-70, etc.), these grades reflect the tensile strength, yield strength and other mechanical properties of the bolt. Different grades are suitable for different load bearing requirements and working environments.

Advantage:

The serrated flange provides excellent self-locking properties, which can prevent the bolt from loosening in vibrating environments.The flange distributes the force over a larger area, resulting in lower surface pressure and reduced risk of damage to the connected materials.The toothed flange ensures that the load is evenly distributed, providing a more secure and stable connection.The integrated flange eliminates the need for separate washers, streamlining the assembly process and reducing the risk of misplacement or damage to components.The flange can cover large or oversized holes, preventing dirt and other contaminants from entering the joint.

Scope of 

Application

They are commonly used in truck and heavy vehicular frames where high clamping force and vibration resistance are required.They are ideal for applications requiring a large bearing surface to distribute the load.They are used where a flush finish is needed or where there is limited space for installation.In smaller sizes, they can be found in electronic devices to secure components and prevent debris entry.