How To Determine The Stainless Steel Security Screws Are Really Stainless Steel?

Some buyers bought stainless steel security screws in our factory. Later, we reported to us that when we took the magnet to suck the stainless steel security screws, we had weak magnetic properties. We asked if we used real stainless steel materials.

Many people think that stainless steel is not magnetic, this is wrong. Stainless steel is also magnetic.
One is due to the segregation of components or improper heat treatment during smelting, resulting in a small amount of martensite or ferrite structure in austenitic 304 stainless steel. In this way, the 304 stainless steel security screws will have a weak magnetic. Another is that some iron powder on the machine or mold is dropped on the screw during production, and it is also magnetic.

Of course, if you still don’t believe it, we can provide a wire for the production of stainless steel security screws for testing, or provide SGS reports to you. You can also buy a potion that can be used to detect whether the screw is made of 304 stainless steel.

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