titanium. Dreidels, the four-sided spinning tops traditionally ... it's a lengthy process, consisting of Swiss screw ...

In fact, I have titanium screws in my skull, but that's another story. In the USA, about 600 companies make fasteners. They employ about 60,000 workers, and make about 250 billion fasteners each year.

In the video, [Daniel] is faced with a titanium Torx screw that refuses to come loose due to threadlocker, an adhesive that is applied to screws and other fasteners to prevent them coming loose.

Grafts to replace the ruptured ligament don’t naturally integrate with the bone; surgeons use screws to hold the graft in place. Titanium screws will last, but can shred the graft over time ...