wing screw vs thumbnut

wing screw and thumbnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
wing screw	Yes	No	No	No
thumbnut	Yes	No	No	No

As nouns, wing screw and thumbnut are synonyms defined as:

wing screw and thumbnut: a threaded nut with winglike projections for thumb and forefinger leverage in turning

Other synonyms of wing screw include butterfly nut, wing-nut, wing nut.

wing screw (noun)	thumbnut (noun)
a threaded nut with winglike projections for thumb and forefinger leverage in turning	a threaded nut with winglike projections for thumb and forefinger leverage in turning