Our threaded fittings are made from a high-quality alloy, which means they wonâ??t break down or wear down over time. Theyâ??re also easy to use: just screw them into your existing piping system, and you can be sure that your pipe will remain sturdy and secure. The primary use of threaded fittings is in the plumbing industry, where they are used for joining pipes together. Other applications include shipbuilding, automobile manufacturing, aerospace industry, construction and oil extraction industries.