locknut

1. Fuel Pump Module Locknut
   燃油泵模组锁定螺帽
2. The locknut is rotated to lock the spring chuck, so as to clamp a drill bit which is enabled to rotate along with the spindle to carry out the drilling processing.
   通过转动锁紧螺母锁紧弹簧夹头从而夹紧钻头，使钻头跟随主轴旋转进行钻削加工。
3. Recheck clearance on all valves again after locknut is tightened.
   防松螺母拧紧后，再对所有气门的间隙重新检查一次。
4. To replace seat/ stem module shut off supply, loosen locknut and back off adjusting screw.
   要更换阀座/杆模块，先关闭供应管道，松开锁紧螺母，退出调节螺丝。
5. Position locknut over top of fuel pump module.
   将锁定螺帽放在燃油泵模组上。
6. Hold the adjusting screw from turning with screwdriver and tighten locknut to27 N · m ( 20 lb-ft).
   用螺丝刀止住调节螺丝不让其移动，并将防松螺母拧紧至27牛顿·米（20磅-英尺）。
7. Numeric analysis of the anti-breaking mechanism of Fe-based SMA locknut
   铁基形状记忆合金防松螺母防断机理的数值分析
8. Research on a new-type intelligent locknut
   一种新型智能防松螺母的研究
9. So far, the studies of Fe-Mn-Si shape memory alloy threaded connection locking have focused on the locknut, and based on the recovery of Fe-Mn-Si shape memory alloy constraints locking bolt has not yet published in the paper.
   至今，对Fe-Mn-Si形状记忆合金螺纹连接防松研究均集中于防松螺母，而基于Fe-Mn-Si形状记忆合金约束恢复的防松螺栓研究还未见报道。

noun

1. supplementary nut that is screwed down on a primary nut to prevent it from loosening

   Synonym:    safety nut