碟型垫片，又称碟型华司或盘型华司，碟型垫片有类似弹簧的缓冲效果,通常用于垫在连接件与螺母之间的零件，其用途是作为间隔物用来保护被连接件的表面不受螺母擦伤，分散螺母对被连接件的压力，及减少振动带来的脱离。
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