他们快速释放与螺纹紧固件提供。
对于承受重要载荷的螺纹紧固件，应该保证其表面处理方式不论如何变化，都能产生相同的预紧力。
To the threaded fasteners which bear important load, we should ensure that the the same clamping force was produced no matter how to change the surface treatment.
用螺纹联接并起紧固作用的零件称为螺纹紧固件。常用的螺纹紧固件有螺栓、双头螺柱、螺钉、螺母、垫圈等。
Parts with threads used for joining and fastening are called screw fasteners. The most widely used components as screw fasteners are bolts, double screw bolts, screws, nuts, washers.
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