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It features a square neck beneath the round head that locks into the mounting hole during tightening to prevent rotation. It is commonly used to secure rails to clamps.

Solar screws (also known as photovoltaic screws) are specialized fasteners used in solar photovoltaic systems to fix components, brackets, guide rails, and other parts. Their performance directly affects the stability, safety, and service life of photovoltaic systems. The following the core knowledge of solar screws from aspects such as material, specifications, performance requirements, applicati