Shanghai Jinrui owes total assets of RMB 50 million with area of 5000㎡. The business covers 18 countries from five continents.Now three branches of Shanghai Jinrui are Shanghai Xingrui Bolt Factory,Website:http://www.chinajinrui.net, Shanghai Xingrui Wire Steel Factory, and Shanghai Xingrui Hot heading Factory.           DIN standard hex bolt includes two kinds of type,DIN931(half thread) and DIN933(full thread).All the DIN hex bolt can be made of carbon steel,stainless steel,alloy steel and other materials.   The size can be standard or customized.The DIN hex bolt usually used in the machinery and equipment, construction, automobile, railway and other industries.StandardGradeFinishThreadDIN931        DIN9334.8PlainUNC6.8Zinc  plated8.8Yellow  zinc  plated10.9PTFE12.9BlackUNFA2-70DacrometA4-70HDGOtherOtherDIN933DIN931