These bolts feature a hexagonal head with a flange that has teeth-like serrations on the underside. The teeth enhance the bolt's self-locking capabilities, preventing it from loosening due to vibration. The flat bottom of the flange ensures that the bolt sits flush with the surface, providing a stable and secure connection.

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 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 provides a larger bearing area, which helps to distribute the load over a wider surface, reducing pressure on the connected parts and preventing damage.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

Automotive Industry: Used in truck and heavy vehicular frames where high clamping force and vibration resistance are required.

Construction and Structural Engineering: Ideal for applications requiring a large bearing surface to distribute the load.

Machinery and Equipment: Used where a flush finish is needed or where there is limited space for installation.

Electronics: In smaller sizes, they can be found in electronic devices to secure components and prevent debris entry.