Brand Name: Boltmaster | Finish: Galvanized | Material: STEEL | Number in Package: 1 pk | Packaging Type: Sleeve | Thickness: 26 Ga. | Weldable: No | Width: 12 in. The Steel Works Solid Plain Metal Sheets have applications for gutter repair, auto repair, flashing, and duct work. These sheets are zinc finished to give steel a clean look while also providing an anti-rust finish. Available in several sizes. Tip: gauge indicates metal thickness. | Galvanized Steel | Low carbon | Zinc finish