wing screw

/wɪŋ skru/
IPA guide

Definitions of wing screw
  1. noun
    a threaded nut with winglike projections for thumb and forefinger leverage in turning
    synonyms: butterfly nut, thumbnut, wing nut, wing-nut
    see moresee less
    type of:
    nut
    a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt
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