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 ...

Here is something pretty much everyone can agree is true: choosing the right screws for your woodworking project can mean the ...

Machine screws, which have tightly spaced threads, are at more risk of damage than the widely spaced threads of a wood screw.