SteelWorks zinc-plated square key stocks are great for fence repairs, key stocks, handles, and safety grids. These key stocks feature an electroplated zinc plating that gives the steel a clean, bright look while also protecting it from rust. Zinc-plated steel products should not be welded due to potential toxic fumes. Available in several sizes. | HILLMAN Steelworks Square Key Stock Zinc-Plated Metal | Size 12" x 7/16" x 7/16"