Cause stainless steel screws fracture as follows: 1. the raw materials used stainless steel screws quality problems, poor quality stainless steel screws wire. There are a lot of impurities, impure, dish headband pad screws, resulting in insufficient hardness of stainless steel screws. 2. The production of stainless steel screws process issues. For example, migraine eccentric stainless steel screws, Weihai disk headband pad screws, as well as the production of manufacturing jobs nowadays punch Q value is too deep and too small R-bit designs. 3. Customers in the use of stainless steel screws, excessive force. Usually you do the next torque minimum breaking strength test to see how much, and then you can adjust the torque. 316 and 317, which contain alloying elements Mo, so their high-temperature strength and corrosion resistance than 18-8 stainless steel high. 321 and 347, 321 contain a more stable alloy elements Ti, 347 type containing Nb, thereby increasing the resistance to intergranular corrosion of materials. Not annealed or stainless steel fasteners in 420 ~ 1013 ℃ after serving applies to welding. External causes produce stainless steel screw locking phenomenon: There is no proper understanding of the mechanical properties of stainless steel screws and use specifications. Production of stainless steel screws to be selected length and thread size according to the actual requirements, bolt through from the other side of the device after it with the locking nut and the completion of the best exposed one to two teeth. Stainless steel is a relatively easy to heat the material, in actual operation and the weather temperature will have some contact, and lock the biggest reason is because the product is too high and too fast rise in temperature occurs, so during storage are also stainless steel screws to stay away from high-temperature environment. Headband pad plate screw | Jinan Daoqin | Jinan disk headband pad screws provided by Jinan Daoqin Trading Company. Headband pad plate screw | Jinan Daoqin | Jinan disk headband pad Jinan Road ground screw Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) this year introduced a new upgrade, the above picture is for reference only, please You call Tel picture on this page or to obtain the latest information, contact: Chuan-use.