When London's Crystal Palace was constructed in 1851, it was the world's largest building. However, the project's greatest mystery was how the structure was completed in just 190 days. A new study ...

Last year, we saw [How To Make Everything’s] take on [DaVinci’s] machine for cutting threads. However, they stopped short of the goal, which was making accurate metal screw threads. After much ...

A musculoskeletal system so far unknown in the animal world was recently discovered in weevils. The hip of Trigonopterus oblongus does not consist of the usual hinges, but of joints based on a ...

Shoulder screws, also known as shoulder bolts and stripper bolts, are machine screws with an integral shoulder or journal between the head and thread. Although they are not readily available in local ...

Single-thread-engaging nuts are formed by stamping a thread-engaging impression in a flat piece of metal. They are used for lighter-duty applications than multiple-thread nuts of the same size. These ...

One of the six simple machines, a screw is nothing more than an inclined plane wrapped around a center pole. While today screws come in standard sizes, and typically are tightened by turning clockwise ...