Weldable Hot Rolled Steel Square Bar (3/4" x 12") Bulb Industries steel square bars work great for any type of project where a steel square bar is needed. These bars are weldable, machinable, and paintable. Cut to a convenient size each set includes 1 steel square bar 3/4 inch square by 12 inch long. Made in the USA with from USA hot rolled steel square bars that are saw cut and ready to use. Steel comes pickled and oiled (P&O) for a rust resistant finish.