Stainless Steel Insert Nut 1.ANSI,CE,DIN,BS& non-standard ... 6.8,8.8,9.8,10.9.... Stainless Steel Insert Nut ,Stainless Steel Barrel Nut ,Stainless Steel Blind Nut. ... plated,Tin plated,Blackphosphating ,anodized ,and Environmental Plated is used in our products,it is no toxic metal of Hexavalent ... for your best view:1)applicable scope:They are used in most of places such as drywall,concrete,chipboard, ...