Floor flanges are common to use for plumbing. They are used to connect pipes onto your floor or wall. The female thread found on them creates a secure and solid support for any male threaded pipe that is connected with it.
Industrial Pipe Furniture
ANSI B16.3- Malleable Iron Threaded Fittings Classes 150
Industrial Pipe Decor
Threads: Pipe Threads, General Purpose ASME B1.20.1
Great for DIY Projects