302 for using screws and self-tapping screw machining. 303 In order to improve cutting performance, 316 stainless steel screws, type 303 stainless steel add a small amount of sulfur, for use bar machining nut. 304 is suitable for hot upsetting when machining stainless steel screws, Weihai 316 stainless steel screws, such as the longer standard bolt, Jining 316 stainless steel screws, bolts of large diameter, they are likely to go beyond the scope of the cold heading process. 305 is suitable for cold heading process when machining stainless steel screws, such as cold forming nuts, hex bolts. 309 and 310, they Cr content and Ni content higher than 18-8 stainless steel, suitable for working at high temperature stainless steel screws. In particular to make it is that the magnetic 304 stainless steel due to the above reasons, stainless steel and other materials, such as 430, magnetic steel is not at the same level, ie 304 magnetic always shows weak magnetism. This tells us that if the weak magnetic stainless steel or entirely without magnetic, should be 304 or 316 is determined; if the magnetic steel of the same, showing ferromagnetic, because discrimination is not 304. Ferritic stainless steel material classification: 430 ordinary chrome steel, its corrosion resistance and heat resistance than 410 is good, Linyi 316 stainless steel screws, magnetic, but it can not be heat strengthened, suitable for and resistant to corrosion and slightly higher thermal performance, strength requirements generally stainless steel screws. Jining 316 stainless steel screws | Jinan Road ground (certified) | 316 stainless steel screws provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) Shandong Jinan, hardware accessories leader over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy client needs. Jinan Road ground in leadership with the staff warmly welcome all inquiries negotiations to create the Jinan Daoqin better future.