The national standard for stainless steel combination screws is broad, but it can still be determined on several scales. At the very least, I know the type of combination screw, and I also know that it is made of stainless steel. Generally speaking, like stainless steel combination screws, we all know that they are almost all made of stainless steel 304.
  National standards for stainless steel combination screws. Generally speaking, there are three standards compared with commonly used ones. One is the national standard number of GB9074.8, the other is the national standard number of GB9074.4, and the final one is the national standard number of GB9074.13. Of course, there are many national standards for stainless steel combination screws, but the three that we introduced above are commonly used in comparison. There are GB9074.1, GB9074.3, GB9074.17 and so on. I won't introduce it here.
  Let’s introduce the three specifications of stainless steel commonly used combination screws. GB9074.8 refers to small pan head combination screws, and GB9074.4 refers to large pan head hinge screws. GB9074.13 refers to the cross recessed hexagonal combination screw.