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Can 304 stainless steel screws and 316 stainless steel screws be distinguished by eyes
Can 304 stainless steel screws and 316 stainless steel screws be distinguished by eyes
Because it is difficult to distinguish the model of stainless steel screws by eye, even for technicians who have been engaged in the screw industry for a long time. Whether it is 304 stainless steel screws, 316 stainless steel screws, or 302 stainless steel screws, it is difficult to distinguish with the naked eye, because the surface color of stainless steel screws is almost the same. It is impossible to distinguish it. Some people say that the difference between stainless steel and carbon steel can be distinguished with magnets. This is also unreliable. The performance of stainless steel screws will also change after production. The original non-magnetic stainless steel wire is being produced. The rear screw will be magnetic, and this is unavoidable in production. So we can't tell the type of stainless steel screw with eyes or simple magnet tools.
When we buy stainless steel screws, we must think about the choice between 304 stainless steel screw wire or 316 or other models. If necessary, you can ask the manufacturer for the test report of the material.
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