here are three screws that I find myself using again and again. They fasten wood to wood, metal to metal, and metal to wood. Two of the three are quite inexpensive. I admit that the third screw ...

It's inevitable that accidents happen, especially in the workplace. The doctor accidentally gave you the wrong medicine, a ...

forcing the wood apart. Screw threads are another simple machine, and can be thought of as a long, gently sloped inclined plane wrapped around a cylinder. Cut a long right triangle out of paper ...

Pieces of wood can be joined together in many different ways. Nails, screws and glue are the most common ways to join wood together. When making these joins, wood can be arranged and joined ...