The Self-clinching Fastener Handbook - PennEngineering
2018-9-21 · 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,
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