coarse thread

基本解释

Drywall screws, Phillips bugle head, Coarse Thread, Sharp point, black phosphated.
乾牆螺絲，十字喇叭頭，粗紋，尖頭，磷化黑色。
cwkl-ua.cn.com51.com
The bone anchors can be fully threaded and can have fine thread and coarse threads for engaging cortical and cancellous bone tissue, respectively.
骨錨可完全插入，具有分別用於齧郃皮層骨和松質骨組織的細螺紋和粗螺紋。
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Through analyzing of a bottle cover structure with inner thread, a type of screw and nut with coarse pitch was applied to realize thread core demoulding automatically.
通過對一種帶有內螺紋的酒瓶蓋的結搆分析，闡述了採用大導程螺杆和螺母機搆實現螺紋型芯自動鏇轉脫模的設計過程及其工作過程。