Item NameTi Hex NutClass Screw,nut,bolt,washer,thread rod,etc.GradeGR1、GR2、GR3、GR4、GR5、GR7、GR11、GR12、GR23;StandardDIN934SizeM2-M90SurfaceMachined surfaceTestUltrasonic test (UT)Packing Wooden CaseApplication Bicycle, motorcycle,and automobile,racing car,yacht,sports and electronics,pharmacy,petroleum etc