The points you do not know about micro screw
The points you don’t know about micro screw
What is a high-precision micro screw? In fact, they are the small screws that everyone often talks about. They are generally used in electrical and electronic, industrial equipment, household appliances and furniture. Today, I will introduce it to everyone.
1. divided into two categories
High precision small screws are divided into self-tapping thread and machine thread type. The two categories have very obvious differences. The tail end of the self-tapping is sharp, and their head has in various type, such as pan head, countersunk head, semi-sunk head, etc. tapping micro screw category also includes many subdivided types, such as cut-tail tapping screws, countersunk tapping screws;therefore for machine micro screw type,The end of the machine is not sharp, and the external thread is relatively symmetrical.
2. There are many kinds of materials
There are generally steel and stainless steel material, The first one is made of steel, and the material level grade has high, medium, and medium carbon steel; the latter is made of metal but its material has a large number of stainless steel, and I will not list them all here.
Such as871 stainless steel flat head cross recessedmicromachine screwwith nylon patch
3. processing technology
There are many high precision small screws that must be electroplated, generally referring to steel ,and some customers will also specify the electroplating process for stainless steel. The the electroplating process is also including if needs ROHS or not. There are also many customers who have higher requirements for the strength of the screws, so they must be hardened. If some screws are not hardened, they will slip or break when used in related products, which will effect all applications of that product. Therefore, hardening is necessary in many situations.
All in all, it looks like only a micro screw, but in fact there are very big knowledge behind this,There are many shops in the sales market that selling high-precision small screws. , you must pay attention before purchasing , and do not need to buy in large quantities per time.try their quality first.
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