螺丝帽 Traditional form: 螺絲帽 Pinyin (reading): luósīmào Definitions: nut (female component of nut and bolt) Characters: 螺 - spiral shell, conch; spiral 丝 - silk, fine thread; wire; strings 帽 - hat, cap Traditional characters: 螺 - spiral shell, conch; spiral 絲 - silk, fine thread; wire; strings 帽 - hat, cap