1.our factory produce Cap Screw Gr2 2. size: m6-30x20-250mm 3. certificate:ISO9001:2000 ... .finish:zinc, black, plain,H.D.G Cap Screw Gr2 gradestandardmaterialdiameterlengthsurface3.6(A)DIN(A)Carbon Steelm6-m3010mm-250mm(A)zinc4.61 ... (D)ANSI/ASME galvanized hex bolt1)product name: bolt2)standard :DIN,BS, ANSI, ISO, GB.3)size:m6-m30,1/4 ... AND at buyer's option13)delivery lead time: 30days Cap Screw Gr2