Jinan Road ground stainless steel self drilling screws Type: In addition to the material distinguish between self-tapping screws and stainless steel self-tapping screws stainless steel bolts outside Shandong Zaozhuang, in shape and use functions have different standards distinction. Among them are: self drilling screws, self-tapping screws horizontal tail, pointed tail self-tapping screws, Phillips pan head self tapping screws, self-tapping screws countersunk head cross, triangle teeth locking type self-tapping screws, pan head self drilling screws, Shen head self drilling screws, hex flange self drilling screws. Definition: locking nut is a widely used in machinery and other industries common nuts. The working principle is the use of nut friction between the nut and bolts self-locking. However, in such a dynamic load will reduce the reliability of the self-locking. In some important occasion we will take some anti-loosening measures to ensure the reliability of the nut. Locknut is one of them against rotation. Lock nut locking effect depends on the merits of the nut and bolt meshing interaction between threads. Improve the interaction between engaging the threads there are many, such as structural improvements Spiralock thread nuts, nylon nylon nut by rough, surface treatment, such as thread. Tai'an, Shandong, stainless steel bolts, Jinan Road ground (certified), stainless steel bolts supplied by Shandong Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.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.