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DIN933 DIN931
YPH
The Bolt of DIN933 is fully thread ,The DIN931 standard is half thread ,they all have grade with 4.8/8.8/10.9/12.9,The 4.8/8.8 is common grade ,this zincplated galvanized coating is common is the fasteners market ,It is widely used in many fields, such as transportation railways, photovoltaic projects, tower projects, household furniture, etc