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:
“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)
“There is a sort of veteran women of condition, who, having lived always in the grand mode, and having possibly had some gallantries, together with the experience of five and twenty or thirty years, form a young fellow better than all the rules that can be given him.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)