Dear Pat: The last time I built my deck, I used nails, and now they look bad and many are loose. I am planning to redo the deck and some other outdoor projects. Should I use screws this time? -- Ned B ...

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 ...