In 2002, Wilhelm Modersohn became aware of the SAF2304 (1.4362) material through Avesta in Sweden. In 2003 Modersohn introduced the first Lean Duplex steel for system products in the German market for fastening systems.

As an independent representative of fastening systems from the company Lutz from Wertheim, Wilhelm Modersohn sen. had recognised early on that there was a great demand in the market for fastenings in the area of masonry facades. In March 1970, he and two employees founded the company, which today has over 140 employees.