Material: Carbon Steel
Yellow Zinc Plated Carbon Steel Hex Head Self-Drilling Screw – Made of high-strength low-carbon steel with a multi-layer yellow zinc passivated surface. The coating offers strong adhesion and is not easy to peel, providing better rust and corrosion resistance than blue-white zinc plating. Through precision machining and heat treatment, it delivers high strength and fatigue resistance, capable of withstanding greater torque with secure fastening. Suitable for outdoor open-air environments, high humidity conditions, photovoltaic mounting systems, door and window projects, and other medium-to-high corrosion resistance applications.