英语语法分析

Sink hexangular screw inside the head;

沉头内六角螺丝；

Fix the hook on the base with the M5 inner hexangular set screw.

将钩体用M5的内六角紧顶螺钉固定在底座上。

Fix the Towel Ring on the base with the M5 inner hexangular set screw...

将浴巾环架体用M5的内六角紧顶螺钉固定在底座上。