People often assume that the adsorption magnet magnetic stainless steel, verify the authenticity of the pros and cons and the hexagonal screw within the Tai'an stainless steel, do not attract non-magnetic, considered to be in the good stainless steel hex screw, genuine; suck those magnetic, is considered to be counterfeit fakes. In fact, Zaozhuang stainless steel hex screw, which is an extremely one-sided, not practical method to identify errors. Many types of stainless steel screws, at room temperature, according to the organizational structure can be divided into several categories: 1. Austenitic type: If 304,321,316,310, etc; 2. Martensite or ferrite: as 430,420,410, etc.; austenitic type is non-magnetic or weakly magnetic, martensite or ferrite is magnetic Fracture Analysis sometimes, often seen iron screw fracture there's time, but also to see the stainless steel screw fracture. But in general stainless steel screws are rarely broken. Because stainless steel screws wire itself is relatively hard. However, under certain circumstances within, stainless steel screws or break the Weifang stainless steel hexagonal screw | Jinan Road ground (certified) | stainless steel hexagonal screw provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (daoqinshangmao.com) Shandong Jinan, hardware accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jinan Road ground in leadership with the staff warmly welcome all inquiries negotiations to create Jinan Daoqin a better future.