Japan’s Top Inventions: 2x5
Stay-Tight Fasteners
The behind-the-scenes tales of hit products and creations from Japan: this is Japan’s Top Inventions. This time, a product used in over 20 countries and regions: stay-tight fasteners, nuts used with bolts in railroads, bridges, towers, and more. When normal nuts experience vibration, they sometimes come loose. But stay-tight fasteners, developed in Japan in 1974, overcame this problem. Learn the dramatic story behind the nuts, including a surprising spot that inspired their creation: a shrine!
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2 - 2Acrylic Aquarium Panels Feb. 21, 2019
2 - 3Makeup Brushes Mar. 21, 2019
2 - 4Compact Motorcycles Apr. 17, 2019
2 - 5Stay-Tight Fasteners May. 09, 2019
2 - 6Video Game Character May. 30, 2019
2 - 7Pedal Assist Electric Bicycles Jun. 19, 2019
2 - 8Cooling Gel Sheets Jul. 10, 2019
2 - 9Fiber Tip Pens Aug. 07, 2019
2 - 10Shock Resistant Wristwatches Aug. 21, 2019
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2 - 12Probiotic Drinks Oct. 09, 2019
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