Trademark Hardware is a company that has been making specialty steel solutions for the construction industry. This includes many different types of construction-related hardware products, including bolts and fasteners, nuts and washers, couplings and flanges.

The company was founded in 1911 by Theodore E. DeGroff as a manufacturer of nuts, bolts and rivets. Over the years it has diversified into other product lines to meet customer demands in the ever-changing construction world.