What's with the rusty screws on the new car?

The new car has rusty screws, because you may have bought a stock car.

The rust of new car screws may be an inventory car after a period of production, and the screws will be oxidized and rusted in the air for a long time. Especially, although the surface of the screws on vehicle tires has rusted, it is inevitable that some of them will damage the rust-proof layer when disassembling the screws with a one-kilogram wrench, sleeve, etc. In the process of use, the screws are rusted.

The solution to screw rust is as follows:

1. Rusted screws are tight. After the wrench holds the screw, knock the handle of the wrench several times with a hammer. Vibration can loosen the rusty part inside the screw.

2. Using carbonic acid contained in cola to react with iron oxide in rust, rust can be easily removed.

3. If the screw is seriously corroded, barbecue the screw with fire or gas welding oxidation flame. When the screw turns red, drop a drop of oil on it. When it expands with heat and contracts with cold, the gap between the screw and the nut will become larger.

4. Spray the rust remover directly on the rusty screw.

centre

Hub, also known as rim, wheel and tire cover, is a barrel-shaped metal part with its inner contour supporting the tire and its center installed on the shaft. There are many kinds of hubs according to their diameter, width, molding methods and materials.