Electro-galvanized finish is a practical surface option for carbon steel self-drilling screws, widely used for metal roofing, steel frames and indoor metal assembly.

◎ Basic rust protection: The uniform zinc layer slows rusting for indoor and low-moisture outdoor scenarios, suitable for warehouse siding and normal steel bracket installation.

◎ Smooth surface with good torque performance. The thin coating rarely blocks threads, so the screw drills and locks smoothly without jamming during installation.

◎ Consistent bright appearance. It looks neat after fastening, good for visible positions such as decorative metal panels.

◎ Cost-efficient for bulk orders. Electroplating brings lower coating cost than Ruspert or hot-dip galvanizing, helping control project budget for large-volume purchases.

◎ Stable coating adhesion. It fits secondary processing like cutting and sorting, and the zinc layer does not peel easily under normal packing and transit.