butterfly nut

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  • noun

Synonyms for butterfly nut

a threaded nut with winglike projections for thumb and forefinger leverage in turning

References in periodicals archive ?
The details are glued together, butterfly nuts are used to adjust the angle of the antennas easily.
You need to spend at least [euro]28 on a toilet seat and make sure it has metal (not plastic) butterfly nuts and washers so it can be tightened up hard.