A wing nut is a type of fastener with two opposing wings that can be easily tightened or loosened by hand. Other synonyms of the wing nut include butterfly nut, thumb nut, and twist nut. These terms are used interchangeably in different industries depending on the materials and applications involved. A butterfly nut is commonly used in the manufacturing of furniture and fixtures, while a thumb nut is more suited for electronics and medical devices. A twist nut, on the other hand, is used to secure metal plates and brackets, especially in the construction and automotive industries. Despite their differences, these synonyms serve the same purpose of providing a convenient and secure method of fastening.