screw-Self-tapping-dat
easy for two layer assembly
works for plastic-dat wood-dat
- 工程语境中的常用表达
Pre-drilled hole: 预钻孔(自攻螺钉通常需要一个比螺纹略小的引导孔)。
Pilot hole: 引导孔。
Thread pitch: 螺距。
Course thread: 粗牙螺纹(塑料件常用)。
screw into 3d printed parts

easy for two layer assembly
works for plastic-dat wood-dat
Pre-drilled hole: 预钻孔(自攻螺钉通常需要一个比螺纹略小的引导孔)。
Pilot hole: 引导孔。
Thread pitch: 螺距。
Course thread: 粗牙螺纹(塑料件常用)。

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