machine screwEnglishOxford New American Dictionarymachine screw /məˈSHēn skro͞o, məˈʃin skru/ ▸ noun a fastening device similar to a bolt but having a socket in its head which allows it to be turned with a screwdriver.
EnglishOxford New American DictionaryEnglishOxford New American Dictionary
EnglishOxford New American Dictionary