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锁位螺钉如右图所示。这种螺钉设计很简单,并且成本低。在凸缘的一边锪孔,将小O型圈套在标准螺钉的螺纹上即可
Lock screw as shown on the right. This screw design is simple and low cost. Tap the hole on one side of the flange and fit the small O-ring over the threads of a standard screw