Insulation self-locking washers with extended flanges are specialized components designed to provide enhanced coverage and support in various mechanical and electrical assemblies. These washers are particularly useful in applications where a larger surface area is required to distribute the clamping force evenly and ensure a secure connection. The extended flange design increases the contact area between the washer and the mating surface, reducing the risk of stress concentrations and improving the overall stability of the assembly.

The primary function of these washers is to maintain a secure and stable connection between components, preventing loosening and rotation under dynamic loads. The extended flange design allows for a more even distribution of the clamping force, which is particularly important in applications where the mating surface is not flat or where high torque is required. This is achieved through a unique design that includes teeth, ribs, or other protrusions that grip the mating surface, preventing any movement.

The materials used in the construction of these washers are chosen based on the specific requirements of the application. Common materials include stainless steel, brass, and various polymers, each offering different levels of strength, durability, and resistance to environmental factors. Some designs also include features such as special coatings or treatments to enhance their performance in specific environments.

In addition to their mechanical properties, these washers also provide electrical insulation, which is crucial in many electrical and electronic assemblies. The insulating material prevents electrical current from passing through the washer, protecting the assembly from short circuits and other electrical hazards. This dual functionality makes them an essential component in a wide range of applications, from simple household appliances to complex industrial systems.