... 30x20-250mm 3. certificate:ISO9001 4.material :Carbon Steel,swrch35k carbon steel hex boltcarbon steel hexboltgradestandardmaterialdiameterlengthsurfacepackagepaymentMOQ3.6(A) ... DIN(A)Carbon Steelm6-m3010mm-250mm(A)zincgunny bag/palletT ... zinc, black, plain,H.D.G7) material :Carbon Steel,swrch35k,45#8)thread;BSW,BSF,UNC, ...