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Definition of Butterfly nut
1. Noun. A threaded nut with winglike projections for thumb and forefinger leverage in turning.
Literary usage of Butterfly nut
Below you will find example usage of this term as found in modern and/or classical literature:
1. A Dictionary of Automobile Terms by Albert L. Clough (1913)
"butterfly nut. butterfly nut—A form of thumb-nut intended to be turned without
a wrench, having two wing-like projections formed integrally with the ..."
2. The American Cyclopedia of the Automobile: Or, Motor Cars and Motoring Self edited by Thomas Herbert Russell, Charles P. Root (1909)
"Nut, Fly—Same as butterfly nut. Nut, Helicoid—A nut in the form of a helical
spring furnished with a female thread. Nut, Hexagon—See Bolts and Nuts. ..."
3. The Horseless Age (1904)
"On small tires they use a butterfly nut, and one day when I was laboriously
turning the thimble nuts on my 4-inch tires, it occurred to me that a removable ..."
4. Spectroscopy by Edward Charles Cyril Baly (1905)
"The position of the table can be fixed by a butterfly nut and large washer
underneath the frame. A frame is erected vertically on the table, against which ..."
5. Automobile Troubles and how to Remedy Them: A Practical Book for Automobile by Charles P. Root (1909)
"Care must be taken as each bolt is approached to push it up until the butterfly
nut is flush with the felloe, so that the edge of the cover is sure to get ..."