Bolts are metal rods with ridges on them called threads that screw into nuts, holding things together. Bolt manufacturing is the process of making these bolts.
First, the metal that will be used to make the bolt is heated up and melted down into a liquid form. This metal is usually iron, steel, or another strong and durable metal.
The liquid metal is then poured into a mold that is the shape of the bolt. The mold is like a special container that has the shape of the final product. It is made of a special material that can handle the heat of the liquid metal.
Once the metal has cooled and hardened inside the mold, the bolt is removed from the mold. The bolt now has the shape of the mold, but it is not quite finished yet.
Next, the bolt is "threaded". This means that grooves or ridges are cut into the bolt, going around in a spiral shape. These ridges help the bolt to twist into a nut, so the two pieces can be held tightly together.
After the threading process, the bolt might be treated to make it stronger, more durable, or more rust-resistant. This could involve heating it up again or using a special coating.
The final step is to inspect the bolt, making sure it is the right size, shape, and quality. Any bolts that do not meet the standards are removed and either thrown away or fixed. The finished bolts are then packaged and sent off to be used by builders, mechanics, and other people who need them to hold things together.
So, making bolts is like baking a cake but with metal. You take the metal, melt it down, and pour it into a special shape. Then you add features like threads and put it in the oven again to make it stronger. Finally, you check to make sure it’s good and then you can use it to help hold things together!