Penn Engineering & Manufacturing Corp., founded in 1942 in Doylestown, Pennsylvania, is the parent of PennEngineering. PennEngineering provides fastener, fastener installation, and product solutions worldwide for diverse ......Penn Engineering & Manufacturing Corp., founded in 1942 in Doylestown, Pennsylvania, is the parent of PennEngineering. PennEngineering provides fastener, fastener installation, and product solutions worldwide for diverse industries. The Company manufactures at the corporate headquarters in Danboro, Pennsylvania as well as in several other locations worldwide. Other global manufacturing locations include: • Winston-Salem, North Carolina • Galway, Ireland • Kunshan, China When K.A. Swanstrom founded Penn Engineering & Manufacturing Corp. in 1942, he did so with a revolutionary new product: an easy-to-install, self-clinching fastener that provides load-carrying threads in metal sheets too thin to be tapped. At first, Mr. Swanstrom produced his innovative design with four machines in a Doylestown, Pennsylvania garage. This simple operation soon gave way to a modern facility in Danboro, Pennsylvania because manufacturers and engineers alike recognized the benefits of self-clinching fasteners. They not only reduced time, labor, weight and inventory on many assembly jobs, but they also opened up a whole new world for engineers and designers, making a wide assortment of thin-metal designs possible for the first time. Click here to view Company History. Industry-wide acceptance led to earnest production of self-clinching fasteners shortly after World War II. As industry’s need to hold together ultra-thin and ultra-light metals grew, so did the product line. Over the years the original self-clinching fastener design was modified to meet hundreds of new design applications. Today, PennEngineering is a global company and industry leader with manufacturing facilities in Danboro, Pennsylvania Winston-Salem, North Carolina Galway, Ireland and Kunshan China. Our self-clinching, broaching, surface mounted, and flare-in fastener products are sold worldwide through an extensive channel of engineering representatives and distributors.