Season
Season 8 Episode
- Season 2 Snap-Off Utility Knives
- Season 2 Acrylic Aquarium Panels
- Season 2 Makeup Brushes
- Season 2 Compact Motorcycles
- Season 2 Stay-Tight Fasteners
- Season 2 Video Game Character
- Season 2 Pedal Assist Electric Bicycles
- Season 2 Cooling Gel Sheets
- Season 2 Fiber Tip Pens
- Season 2 Shock Resistant Wristwatches
- Season 2 Cup Ramen
- Season 2 Probiotic Drinks
- Season 2 Special Effects Monster Movie
- Season 2 Umami Seasoning
- Season 2 Blue LEDs
- Season 2 Spinning Top Toys
Japan's Top Inventions - Season 2 Episode 5 Stay-Tight Fasteners
0.00 48 minutes 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!
