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Item NameGr5 Din933 Hex Head BoltClassScrew,nut,bolt,washer,thread rod,etc.Material GradeGR1、GR2、GR3、GR4、GR5、GR7、GR11、GR12、GR23;StandardDIN 933/ISO 4017/GB /T 5783DimensionM12*65SurfacePolishing, Anodizing, Black oxide,ColoredPackingWooden CaseApplicationChemical, Industry, Petroleum, Aircraft