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平头螺丝 [píng tóu luó sī]
[机] grub screw
flat head screw
flat head screw
- 十字平头，钻尾螺丝，双线螺纹，锌，散装。
Phil. Bugle drywall screw, coarse thread, black phosphate, bulk packing. - 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。
Flat-head inner hexagon screws instead the flat-heat cross-screw to increase the required installation and disassembly force. - 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。
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.
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