After acquiring Shakeproof Screw and Nut Lock Company in 1923, ITW engineers developed the Shakeproof twisted tooth lock washer to resolve issues caused by uneven road conditions on the Ford Model-T. ITW is now a global company with multiple manufacturing and engineering facilities across the United States that produce metal fasteners through cold forging, cold heading, cold rolling, stamping, and CNC machining. The document provides details on ITW's product offerings and manufacturing capabilities.