Note: if there is no standard screw and it belongs to non-standard part, it needs to provide drawings.
For example, DIN912, the Chinese name is: Hexagon socket head screw, this is the product name.
However, the most accurate way is to call the standard, because gb70 is also the same product name; however, there are many places where the sizes of the two standards are not consistent.
The most influential standards in the world are: German standard (DIN), international standard (ISO), Chinese national standard (GB), American Standard (ANSI) and Japanese standard (JIS).