Stainless steel screws definition is the use of stainless steel screws material nickel or nickel to eight or more, known as SUS304 standard production. At present, major industries use stainless steel screws with increasing frequency. The mechanical properties of stainless steel and carbon steel screws slightly different, Dongying stainless steel ball valve, multi-use environment which demands a preservative. Surface treatment processing can be achieved without a good anti-corrosion effect. Stainless steel screws rust corrosion properties better, there is a strong carry corrosion, stainless steel ball valves, high temperature performance, also has a strong anti-rust properties. But in the harsh environment still will rust. For example, stainless steel screws in very humid conditions, Weihai stainless steel ball valves, air shower every day the sun, wind and rain. Long time friends, how many students will certainly point rust. In the example, and some of the acid-base chemical exposure, to produce a chemical reaction. Cause corrosion rust. There is not original stainless steel screws, for example made of SUS201 stainless steel screws on the water-use products, Linyi stainless steel ball valve, since the normally soak time, had SUS201 stainless steel screw itself is not suitable for the strong sea salt Using the above. Cause corrosion rust. Above sea products in use, is generally recommended SUS316 stainless steel screws, stainless steel screws as 316 more corrosion properties carry a bit better. Category Products Products Detailed hexagonal bolt (1) hex whole tooth: GB5783 / DIN933 (2) hex half tooth; GB5782 / DIN931 (3) B-grade hex flange bolts: GB5787 (4) loose bolt: GB798 / DIN444 (5) manual welding with welding bolts: GB902 Jinan Jinan _ stainless steel ball Daoqin (certified) _ stainless steel ball valve provided by the 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 customer demand. Jinan Road ground in leadership with the staff warmly welcome all inquiries negotiations to create the Jinan Daoqin better future.