1. Hit hard with a hammerScrew the screw with a wrench, and then hit the knob of the wrench with a hammer, knock twice w

1. Determine whether the physical properties of the product can consider the application requirements, such as the compr

Measuring tools can be divided into three categories according to their main USES:1. Standard measuring tools.A measurin

1. The type and specification of the word screwdriver are expressed as the total width of the cutter head * boring cutte

1. It#39;s very simple and lightweight.2. There are six surfaces in the middle of the socket head screw and wrench, whic

1. Choose the right products2. Reduce friction resistance3. Proper operation steps4. Safety torque refer to the table

1. Firstly eliminate the silt with broken screws and cut off the surface layer. Then use the center gun to kill the cent

Everyday life often requires the use of screws, if you like cattle with brute force to tighten the screw, very easy to p

1. Phosphating film is not generatedThe surface of the standard parts is hardened by cold work, the sulphate content in

How to store the bolts in the warehouse?The high-strength bolt connection pair shall be cleaned, classified and stored i

In fastener work, the situation is far more complex and severe than in the physical model.It is clear that the invalidat

1. Measurement instrument methodThe usage includes vernier caliper, micrometer, plug gauge, etc.2. Magnetic methodThe ac