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Zinc Plated Partially Threaded Mushroom Head Square Neck Carriage Bolt Grade 6.8 DIN603,M 10 /12
Diameter range (mm)：M5-M24，3/16-1'Length range (mm)：16-600，1''-2'
At present, there are some methods to quickly detect the authenticity of stainless steel fasteners on the market, such as the use of stainless steel potions and magnets. However, after years of verification, these two methods are not scientific. The reason is that there are many stainless steel agent monitoring potions and complex components.
Relevant qualitative standards, different experimental method requirements, and many other complex issues, it is difficult to make qualitative judgments. After many years of testing results of chemical potions by Haiyan Xinglong Fastener Co., Ltd. and the chemical composition of spectrometers, it has been confirmed that there are many detection methods for potions. Inaccurate and unscientific. Regarding the detection with magnets, the magnetic problem of stainless steel fasteners has been fully explained in the magnetic problem link, and it has been proved that it is unscientific to distinguish the authenticity of stainless steel fasteners simply by whether they have magnetism. Therefore, the most accurate scientific inspection of stainless steel fasteners The authenticity of firmware materials is still detected by chemical elements.
The main products of Haiyan Xinglong Fasteners Co., Ltd.: Carbon Steel Carriage Bolts of high-strength bolts and Hex Bolt, smachine screws, tcross recessed screwss, pan head screws, echeese head screws ,flat head screws ,round head screws and other special-shaped parts.
