外六角形螺旋体

outer hexagonalscreware widely used in various fields such as mechanical manufacturing, automobile industry, construction engineering, electronic equipment and so on. In mechanical manufacturing, they are used for connecting various parts, such as assembling engine blocks and fixing machine tool components. In the automobile industry, they are used for connecting vehicle body structures and installing chassis组件.在施工工程中，它们用于连接钢结构并在电子设备中固定管道.，它们用于组装设备套管和修复电路板.}