圈上泽文通大华 Nuts Lock Nuts:For preventing spontaneous loosening of nuts due to vibration. >Two nuts jammed together on the bolt or a castle nut with cotter pin both reliably achieve this goal. These threads provide interference with those on the bolt and resist loosening 圈上泽夫道大学 Nuts Nuts are also made with nylon inserts in the threads that deform when forced onto the bolt. >The nylon flows into the thread clearances and grips the bolt. A pin lock nut has a steel pin that allows tightening,but digs into the bolt threads to prevent loosening. ▣Nuts are also made with serrations(锯齿状)on one face that act to dig into the clamped part and resist loosening. 77 Nuts  Lock Nuts: For preventing spontaneous loosening of nuts due to vibration.  Two nuts jammed together on the bolt or a castle nut with cotter pin both reliably achieve this goal.  These threads provide interference with those on the bolt and resist loosening. 上螺母 螺 栓 下螺母 上螺母 螺 栓 下螺母 上螺母 螺 栓 下螺母 上螺母 螺 栓 下螺母  Nuts are also made with nylon inserts in the threads that deform when forced onto the bolt.  The nylon flows into the thread clearances and grips the bolt.  A pin lock nut has a steel pin that allows tightening, but digs into the bolt threads to prevent loosening.  Nuts are also made with serrations(锯齿状) on one face that act to dig into the clamped part and resist loosening. Nuts