Allen screw

中文含义： 六角螺丝

英语词性： Noun

美式发音： /ˈælən skru/

同义词: Hex screw, Hex bolt

易混淆单词: Phillips screw（十字螺丝）, Slotted screw（槽型螺丝）

双语例句：

  1. The assembly requires four Allen screws, which are not included.
  2. The Allen screw was tightened with an Allen wrench.