1.our factory produce Cap Screw Gr2 2. size: m6-30x20-250mm 3. certificate: ... ISO9001:2000 4.finish:zinc, black, plain,H.D.G Cap Screw Gr2 gradestandardmaterialdiameterlengthsurface3.6(A)DIN(A)Carbon Steelm6-m3010mm ... machinery, construction, transportation, electric power, electronics, chemicals, and home appliances, military industry and other industries11)minimum order:1ton12)packing: 50kg sacks ...