... : 3-100 certification : ISO9001-2000 Stainless steel hex hea screw/boltsMaterials: stainless steelSize: M2-M6/ST2.2-6.3Surface ... Place of OriginSuzhou China(mainland)Brand NameTeerteMaterialCarbon steel & stainless steelSizeAll frequently-used size, produce as your requirement ... is okStandardGB,GB/T,DIN,JIS,BSW,ANSI,ISO & non-standard productsSurfacePlain, Yellow zinc, black phosphated, grey phosphated ...