PHILLIPS SCREWS COUNTERSUNK FLAT HEAD BOLTS M2 M3 M4 M5 M6 A2 STAINLESS BLACK

304 stainless steel belongs to austenitic stainless steel. Martensite is magnetic, so 304 stainless steel is non-magnetic or micro magnetic. ① Support the detection of 304 stainless steel special testing solution, and if it does not change color, it will be authentic 304 stainless steel.

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