Hot-Dip Galvanizing vs. Electro-Galvanizing for Screws: Choosing the Right Protection

Keywords: Galvanized Screws, Screws, FastenersNot all galvanized screws are equal. Hot-dip galvanizing (HDG) immerses fasteners in molten zinc, creating a thick, durable coating ideal for harsh outdoor and industrial environments. Electro-galvanizing (EG) applies a thinner, smoother zinc layer via electrolysis, suitable for indoor applications or where precise threading is needed. Understanding the corrosion performance, appearance, and cost implications of each process helps you specify the correct galvanized screw for projects ranging from coastal construction to electrical enclosures.