1.Size:M6-M30 2.Materail:Carbon steel,Stainless steel 3.Finish:zinc Plated 4.Stock:stock 5.Packing:regualr packing Detail Description ... Materail: Stainless Steel, Mid Carbon Steel, Low Carbon Steel 3.Finish:Plain, Black,Hot-dip Galvanizing, Zinc Clear, Zinc ... Yellow, Zinc Black, Copper Yellow, Dacromet, etc.4. Standard: DIN9345.Grade: 4,8,10,126. Quality Certificates: ISO9001,ISO14001,ROHS,SGS7. ...