Stainless Steel Insert Nut 1.ANSI,CE,DIN,BS& non-standard ... .8,8.8,9.8,10.9.... Stainless Steel Insert Nut ,Stainless Steel Barrel Nut ,Stainless Steel Blind Nut ... customer's demand .ThreadType "M","UNC","UNF","BSW"thread are available.Head typeHexagon head,Mushroom head,Pan head, ... in most of places such as drywall,concrete,chipboard,machine,wood...2)Main export market:North America,South America ...