Screw knowledge: how to choose a combination screw

The combination screw is a kind of screw, and the screw is called the industrial rice. Industry cannot do without small screws. However, the combined screw is composed of a screw, a spring washer, and a flat washer. Fasteners assembled by thread rolling. Combination screws are more convenient to use, do not manually match bolts, spring washers, and flat washers. So it is more convenient. But the price is slightly more expensive than the combined bolts, spring washers, and flat washers.

Combination screw function: It has perfect tightening and crimping ability, supporting high and low voltage contact, high and low voltage air conditioner wiring, electric current and voltage, power, frequency and performance of the power supply. Compared with the traditional separation screw, It can save manpower, labor, time and other advantages. This product is suitable for all kinds of electrical equipment. Home appliances, office equipment, communication equipment and other mechanical equipment. There are also many companies producing combined screws all over the country, and potential customers can compare them. Walk more and see more. What others say is not necessarily good. I have seen it with my own eyes and have used the combination screw product before I know which one is better. (Guide: Features and processing applications of thread milling)

Combined screws are generally used in mechanical cabinets, and there are more electricity. And some companies. Small screws are not very expensive. For convenience and flexibility. Therefore, more combination screws are used. The material of the combination screw is divided into iron, stainless steel, and copper. However, the use of iron and stainless steel is very common. And iron can be divided into, we use screw materials, there are 1010.1018.10B21 materials, stainless steel is divided into SUS201, SUS304, SUS316 and so on. There are many kinds of electroplating of iron combination screws: ordinary and environmentally friendly. For example: color zinc, generally called red color. White zinc, black zinc, white nickel. Blue zinc. There are environmentally friendly color zinc, environmentally friendly white zinc, and environmentally friendly blue zinc. Environmentally friendly white nickel. There are more advanced ones. Nickel on copper, nickel in brine.

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