SteelWorks perforated angles are commonly used in garage door assemblies and are best for building or replacing tracks. These angles have an electroplated zinc coating that gives the steel a clean, bright look while also protecting parts from rust. Steel that is zinc-plated should not be welded due to toxic fumes. Tip: gauge indicates metal thickness. Available in several sizes. | HILLMAN 25 Piece Painted Head Square Drive Deck Screws in Tan | Size 10 x 3"