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2. Threaded pipe - Wikipedia

   en.wikipedia.org/wiki/Threaded_pipe

   Therefore many municipal plumbing codes restrict the use of threaded plastic pipe fittings. Both British standard and National pipe thread standards specify a thread taper of 1:16; the change in diameter is one sixteenth the distance travelled along the thread. The nominal diameter is achieved some small distance (the "gauge length") from the ...

3. National pipe thread - Wikipedia

   en.wikipedia.org/wiki/National_pipe_thread

   National Pipe Taper Fuel (NPTF, also called Dryseal American National Standard Taper Pipe Thread, defined by ASME B1.20.3) is designed to provide a more leak-free seal without the use of PTFE tape (often referred to by the popular brand name "Teflon") or another sealant compound. NPTF threads have the same basic shape but with crest and root ...

4. Tap and die - Wikipedia

   en.wikipedia.org/wiki/Tap_and_die

   Taps and dies are tools used to create screw threads, which is called threading. Many are cutting tools; others are forming tools. A tap is used to cut or form the female portion of the mating pair (e.g. a nut). A die is used to cut or form the male portion of the mating pair (e.g. a bolt).

5. Forget the dealership: You can now buy a Hyundai on Amazon

   www.aol.com/finance/forget-dealership-now-buy...

   After nearly a year of waiting, Amazon (AMZN) users can now buy a Hyundai (HYMTF) vehicle through the online retailer. Starting today, Amazon car shoppers in 48 cities, including New York, Los ...

6. Animal lover beaten to death on Christmas Eve while trying to ...

   www.aol.com/news/animal-lover-beaten-death-pipe...

   A 60-year-old animal lover was beaten to death with a pipe on Christmas Eve while trying to save a dog that was being abused by a neighbor, witnesses said. Robert “Bobby” Cavanaugh, of Madison ...

7. Thread seal tape - Wikipedia

   en.wikipedia.org/wiki/Thread_seal_tape

   Thread seal tape is wrapped around the threads, lubricating the connection and allowing the two pieces to be screwed deeper together. Thread seal tape (also known as PTFE tape, Teflon tape, or plumber's tape) is a polytetrafluoroethylene (PTFE) film tape commonly used in plumbing for sealing pipe threads.