面板螺钉被称为松不脱螺钉是因为产品的头部有一圈压花的齿纹，在铆压安装后拧入或拧出螺纹时不会脱落，占用很小的空间，可填补基体配合孔之间的安装误差。因其头部也有直纹的滚花设计，可直接用手拧紧，所以形象的称为手紧螺钉。
本实用新型是由双孔面板、带元件的印制板和螺钉构成，采用的是二分配器电路。
The utility model is composed of a double-hole panel, screws and a printed board with elements, and a second distributer circuit is adopted.
用螺钉安装实耐宝DIN轨道或控制面板，使操作灵活，便于安装。
Snap-on DIN rail mount capability or panel mounting with screws allows for flexibility and ease of mounting.
本发明的空气调节器的特征是：冷凝器和隔板的一端是通过同一螺钉同时连接在上述前面板上的。
And the characteristic of the air regulator is that they connect to the front board by the same screw.
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