Screws may be commonplace, but that doesn't mean they're simple. A screw is any shaft with a corkscrew groove carved around its surface and, regardless of their design, screws are usually used to ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

JIS screws: Myth or Miracle? That is often the question when it comes to discussing JIS or Japanese Industrial Standard screwdrivers. I’ve been told there is no difference between a standard Phillips ...

A well-made set of tools for the motorcycle mechanic who wrenches on Japanese machines. The shorter handle design may make it difficult to get a good grip with larger hands. In 2011, I reviewed a pair ...

Decades ago, every electronic device was sealed with one of two types of screws: a minus-shaped Flat/Slot head, or a plus-shaped Phillips head. There was no concept — at least, for common consumer ...

Apple is making it more difficult for iPhone 4 owners to perform simple DIY repairs by replacing common Phillps head screws with a rare “pentalobe” screws. While newer iPhone 4s have included the ...