What is the size of the screw on the back cover of the bull board and what type of screwdriver should be used?

This plug-in screw is generally a straight screw with a thickness of 4mm, and the ordinary screwdriver cannot enter the bull back cover, so the U2.0 screwdriver in the opposite sex screwdriver should be used.

The fixing screw used in Bull brand plug-in is a special-shaped screwdriver slot, which is different from the common straight slot and cross slot. After the bull socket is opened, there should be two screw holes on the back of the power supply.

When you open it with a screwdriver, you can see that the terminal can open the bull socket. The bull socket doesn't want people to open it casually, so the screw is special. Ordinary screws can't be screwed, so special screws are needed. Its head is like a fork. It is recommended not to open the bull socket casually.

Extended data:

Characteristics of Bull Socket Products

1, three core technologies

Bull socket patent has three core technologies: anti-electric shock, anti-plugging and anti-combustion.

Anti-electric shock: The new national standard combined hole design, anti-electric shock shell structure design, socket safety design, safety insertion distance enhancement design and other multiple safety designs can effectively prevent electric shock accidents;

Insertion resistance: high-quality copper sheet, patented sleeve design, strong elasticity, suitable meshing, not loose after 5000 insertions, which can effectively prevent arc discharge.

Flame resistance: all internal materials are made of flame retardant engineering materials, which do not burn at 750 degrees, effectively preventing fire and eliminating potential safety hazards.

27-way safety design

Bull socket adopts 27 all-round safety designs to ensure the safety of the socket from the design source. Whether it is plug, power cord, shell, switch or internal copper sheet, Bull has carefully designed every detail of the socket, striving to eliminate potential safety hazards from the source.

2. Capabilities and advantages

Bull brand socket, a well-known trademark in China

Voltage: 220 volts

Maximum input power: 2500W W W.

Product advantages: high conductivity copper sheet, nickel plating, rust prevention, less heat generation, optimized copper sheet structure, longer service life and more than 5000 plugging and unplugging times. Silver alloy contact, better conductivity, switch life more than 10000 times, imported engineering plastics, flame retardant, high temperature resistance, vibration resistance and fall resistance.

3. Quality characteristics

High conductivity copper sheet, nickel plating, rust prevention, less heat dissipation.

Optimized copper sheet structure, longer service life, more than 5000 times of plugging and unplugging.

Silver-cadmium alloy contact has better conductivity, and the switching life exceeds 10000 times.

Imported engineering plastics are flame retardant, high temperature resistant, vibration resistant and fall resistant.

References:

Baidu encyclopedia-bull socket