浮动螺母也称卡式螺母,是一种自带调节功能的螺母,可补偿配合孔的安装误差。在1950年代初申请专利,最初设计需要用工具将其压入孔内[1][2]。改良后,不需借助工具即可完成安装[3]

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浮动螺母和一个螺栓

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