Thread Form
NPT and NPS threads have a 60° included angle and have a Sellers thread form (flattened peaks and valleys).
Read more about this topic: National Pipe Thread
Famous quotes containing the words thread and/or form:
“There’s something like a line of gold thread running through a man’s words when he talks to his daughter, and gradually over the years it gets to be long enough for you pick up in your hands and weave into a cloth that feels like love itself. It’s another thing, though, to hold up that cloth for inspection.”
—John Gregory Brown (20th century)
“[One cannot express lack of knowledge in affirmative language.] This idea is more firmly grasped in the form of interrogation: “What do I know?”Mthe words I bear as a motto, inscribed over a pair of scales.”
—Michel de Montaigne (1533–1592)