Includes Low Head, Button Head, and Flat Head Screws, as well as special Socket Cap Screws such as Vented, Drilled Head, Self-Locking, and more.

包括低压头，半圆头及平头螺丝以及特殊内六角圆柱头螺钉如排空，钻孔头，自锁，等等。

youdao

Flat-head inner hexagon screws instead the flat-heat cross-screw to increase the required installation and disassembly force.

原有平头十字螺丝改为平头内六角螺丝。以增强安装或拆卸止水栓时的力度需求。

youdao

When she returns the screwdriver a couple days later, your friend mentions that she made an improvement: now it works with both Phillips and flat head screws.

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