Bull switch panel socket long screws life can be seen everywhere

I don’t know if you have noticed that we can use long screws in many places in our lives, but we can only see one head of the long screw, so we often ignore it and think it is just a small screw. How long can it take, let’s take the commonly used bull switch panel socket, it also uses long screws, but she is hidden inside and we can’t see it?

Bull switch panel socket long screws is the national standard round head extension screw, iron material, there are many colors, you can choose any color, the material can also be specified, according to the material, the surface treatment process is also different.

With the long screws, the Bull switch panel socket can be installed firmly, so what is the installation operation? Take the Bull Switch as an example to tell you about it:

1. First, select the appropriate screwdriver according to the slot type of the extra long screw.
2. Remove the face frame with a screwdriver. If the face frame is virtual, there is no such step.
3. Connect the live, bottom and neutral wires of the power supply to the L/N/ground terminal of the switch.
4. Install the holder into the bottom box of the wall and fasten it with a screwdriver.

5, the face frame is buckled back to the original place

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