圓(yuan)柱銷(xiao)(xiao)(xiao)(xiao)屬于定(ding)(ding)位銷(xiao)(xiao)(xiao)(xiao)，用(yong)(yong)于固定(ding)(ding)零(ling)件(jian)(jian)(jian)之間的(de)相對位置，一(yi)般用(yong)(yong)以聯接、鎖定(ding)(ding)零(ling)件(jian)(jian)(jian)或作(zuo)(zuo)裝(zhuang)配定(ding)(ding)位用(yong)(yong)，也(ye)可以作(zuo)(zuo)為安全裝(zhuang)置的(de)零(ling)件(jian)(jian)(jian)。主要(yao)分(fen)為普通(tong)圓(yuan)柱銷(xiao)(xiao)(xiao)(xiao)、內(nei)螺紋型(xing)圓(yuan)柱銷(xiao)(xiao)(xiao)(xiao)，及(ji)彈性(xing)圓(yuan)柱銷(xiao)(xiao)(xiao)(xiao)。圓(yuan)柱銷(xiao)(xiao)(xiao)(xiao)靠過盈固定(ding)(ding)在(zai)孔中，用(yong)(yong)以固定(ding)(ding)零(ling)件(jian)(jian)(jian)、傳遞動(dong)力，或作(zuo)(zuo)定(ding)(ding)位件(jian)(jian)(jian)。是組(zu)合加工和裝(zhuang)配時候(hou)的(de)重要(yao)輔助零(ling)件(jian)(jian)(jian)。彈性(xing)圓(yuan)柱銷(xiao)(xiao)(xiao)(xiao)較前兩者充盈效果(guo)更好，穩固性(xing)更強。
