The screw cover caps offer a straightforward yet efficient way to shield exposed screw heads, primarily used for home, wall, and furniture decoration, among others. Installation Hole Diameter: 5mm / 0.2 inch; Suitable for screw head diameters less than 10mm / 0.4 inch and screw head thickness less than 3mm / 0.12 inch. They conceal the screw heads while protecting them from rust and corrosion. Excellent electrical insulation, smooth surface, scratch-resistant, and wear-resistant. Two separate parts connect via a hinge, folding away neatly. Simple to install��just place the screw through the cover hole, screw it into place, and cap it. Please ensure to check your screw head size and thickness prior to purchase.