Jureit developed and patented the most famous version of his Gang-Nail connector plate, the first metal tie that required no nails, screws or glue. The Gang-Nail plate is a sheet of galvanized steel with triangular pointed prongs that are stamped out and bent perpendicular to the plate face, allowing it to be hammered or pressed into a number of surfaces simultaneously. Starting with this patent, Jureit founded Gang-Nail, Inc in 1956, later renamed Automated Building Components, Inc. (ABC) in the early 1960's and was Chairman & CEO until his retirement in 1979. Through Cal's persuasion his brother William ("Bill") F. Jureit, an attorney and accountant, left his law practice in the early 1960's to join ABC as Executive Vice President until becoming CEO in 1979. Bill Jureit retired in 1987. Prior to his invention, roof truss production was difficult and time-consuming, requiring highly skilled carpenters to make precise cuts and toe-nail two adjoining pieces wood together. Small mistakes would cause serious time delays as well as weaken the truss. The improved strength of the Gang-Nail plate was evidenced in 1992 when Hurricane Andrew destroyed many homes in South Florida but homes built with Gang-Nail plates were far more likely to survive than those with toe-nailed trusses. Gang-Nails are also used in the manufacturing of floor trusses, premanufactured wall panels, modular housing and mobile home trusses. Additionally, Gang-Nails are also used to strengthen the ends of railroad sleepers, reducing their tendency to split when spikes are driven into them. In an interview with the Georgia Tech alumni newsletter, John A. White, former dean of engineering at the Georgia Institute of Technology, commented that "The whole notion about affordable housing and productivity increases came about because of [Jureit's] invention." In the same article, Jureit stated that the idea for the connector plate came to him during a church service. Business Automated Building Components, Inc went public in 1961 and grew to be the largest company in its industry having operations around the world manufacturing connector plates, machinery, roof/floor trusses, and roof tile, as well as providing computerized engineering services. By 1979 the company employed over 1000 people and had in excess of 2000 Fabricators (customers). It was acquired by Redlands Corporation (a large European manufacturer of cement roof tiles) in January 1979 where the name was changed to Gang-Nail Systems, Inc to protect its Gang-Nail trademark. It was later sold again, merged