Knowledge about precision small screws

What are precision small screws? In fact, it is what we usually call tiny screws, which are generally used in electronic appliances, mechanical equipment, home appliances and furniture.

1. Mainly divided into two categories

Precision small screws are mainly divided into self-tapping type and machine wire type, and the two types have very obvious differences. The tail of the self-tapping type is pointed, and the shape of the head is various, such as pan head, countersunk head, semi-sunk head and so on. Of course, the self-tapping category also includes many sub-categories, such as cut-tail self-tapping screws, countersunk head self-tapping screws, self-tapping self-tapping screws with built-in pads, etc. The tail of the thread type is without a tip, and the thread is relatively uniform.

2. There are many kinds of materials

The common ones are iron and stainless steel. The former is made of iron, and is divided into low, medium and high carbon steel in terms of material; the latter is made of stainless steel, and its material has more types of stainless steel. I will not list them one by one here.

3. Related technology

There are many precision small screws that need to be electroplated, generally referring to iron, and some customers also require electroplating of stainless steel. Electroplating colors are also available in environmental protection and non-environmental protection. There are also many customers who have higher requirements on the hardness of screws, so they need to be hardened. If some screws are not hardened, they will slip or break when applied to related products, which will affect the normal use of the product. Therefore, hardening is necessary in many cases.

In short, it looks like a small screw, but there is a lot of big questions behind it. There are many manufacturers of precision small screws in the market. If you have a friend who has a demand in this regard, you must pay attention to shopping around, and do not buy in large quantities easily.