1.   An X-ray of the package revealed what appears to me to be a partially completed pipe bomb, including threaded pipe, wire and other electrical components.

2.   If you have steel or brass pipes, you should know the basics of working with threaded pipe so you can make repairs or modifications.

3.   Most faucets have a threaded pipe, called the tailpiece, that projects from the faucet body through the sink.

4.   Naturally, you need tools to work with threaded pipe.

5.   Not all threaded pipe is made of steel.

6.   One technique used threaded pipe, called nipples.