safety nut

英 美
  • 锁紧螺母
  • nut n.坚果;果仁n.螺母;螺帽;难对付的人(事)vi.采坚果
  • safety n.安全;保险
Noun:
  1. supplementary nut that is screwed down on a primary nut to prevent it from loosening

    1. Screw the nut with the sleeve spanner.
      用尺寸相应的套筒扳手旋紧螺母。