1.material:Stainless steel. 2.surface:nickel,zinc,chrome or N/A 3.standard ... ,AISI,JIS or as your request Item NameStainless Steel Hexagon NutBrand NameZhongguMaterialCarbon steel, stainless steel, zinc alloy, aluminumStandardDIN, ISO,DIN,JIS, BSW, ... , black zinc, chrome plated.MOQ30000 piecesPayment TermT/T, Western Union Delivery Detail20~30daysPacking detailPlastic or poly bags ,then cartons and ...