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Air damper screws are fasteners used to secure the air damper assembly in boilers and burners, which regulates the airflow for combustion. These screws must withstand high temperatures and repeated adjustments, making material quality important. Properly tightened air damper screws ensure that the damper remains in its set position, maintaining the correct air-to-fuel ratio for efficient burning. As part of burner spare parts and boiler maintenance and repair parts, they are a small but vital component. Replacing missing or damaged screws helps prevent air leaks and performance degradation.