British Standard Whitworth (BSW) is one of a number of imperial unit based screw thread standards which use the same bolt heads and nut hexagonal sizes, the others being British Standard Fine thread (BSF) and British Standard Cycle. These three are collectively called Whitworth threads.
Read more about British Standard Whitworth: History, Comparison of Standards, Current Usage, Historical Misuse
Famous quotes containing the words british and/or standard:
“These battles sound incredible to us. I think that posterity will doubt if such things ever were,—if our bold ancestors who settled this land were not struggling rather with the forest shadows, and not with a copper-colored race of men. They were vapors, fever and ague of the unsettled woods. Now, only a few arrowheads are turned up by the plow. In the Pelasgic, the Etruscan, or the British story, there is nothing so shadowy and unreal.”
—Henry David Thoreau (1817–1862)
“Neither I nor anyone else knows what a standard is. We all recognize a dishonorable act, but have no idea what honor is.”
—Anton Pavlovich Chekhov (1860–1904)