You'll need to order an extra jam nut if you want position-adjustability.

如果您想调节它的位置，需要订购另外一个锁紧螺母。

youdao

You'll need to order an extra jam nut if you want position-adjustability.

如果您想调节它的位置，需要订购另外一个锁紧螺母。

youdao