Size M1.5 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16. Material 304 / A2 Stainless Steel. stainless steel belongs to austenitic stainless steel, austenite in the cold working process in part or a small amount of transformation into martensite, martensite is magnetic, so stainless steel is non-magnetic or slightly magnetic.
eBay