Standard:DINsize:M6-M20Material: Stainless SteelHead Style:Hex nylon nutSurface: Plain, nickel plated, passivationname:M8 stainless steel hex nylon NUT DIN985item:nylon NUTstandard:hex nylon NUTTYPE:DIN985PORT:SHANGHAI,NINGBOORIGIN PLACE:ZHEJIANGJIAXING