WeatherGuard protection is proven to be 3x more resistant to corrosion than competitors. Formulated to endure harsh weather and resist the corrosive effects of pressure-treated lumber, WeatherGuard's superiority is confirmed through extensive testing. The National Hardware Zinc-Plated Silver Steel 8 in. L Screw Hook, rated for 150 lb and available in a 1-pack, exemplifies this advanced durability.