National Pipe Thread - Thread Form

Thread Form

NPT and NPS threads have a 60° included angle and have a Sellers thread form (flattened peaks and valleys).

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Famous quotes containing the words thread and/or form:

    “Deep in the sun-searched growths the dragonfly
    Hangs like a blue thread loosened from the sky—
    So this winged hour is dropped to us from above.
    Oh! clasp we to our hearts, for deathless dower,
    This close-companioned inarticulate hour
    When twofold silence was the song of love.”
    —Dante Gabriel Rossetti (1828–1882)

    “[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)