Many attribute the creation of the screw to the Greek mathematician and inventor, Archimedes, over two thousand years ago. While it’s considered one of the most basic forms of tools, it has acquired many nuances and refinements over the centuries. At the recent International Builders’ Show in Las Vegas, I revisited a German screw-making company and got a close-up look at what modern engineering and technology has brought to this venerable fastener. Here are four that really impressed me.
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