... )Surface:zinc white,blue, nylon insert lock nut:Item name: high quality nylon insert lock nuttdesign prevents burnouts and eliminates the need for indexing and ... : stainless steel,iron,copper,carbon steelFinish: black nickel,white zinc,bule zinc,color zinc,black zinc,chromeStandard: JIS,BS,GB,ISO,DIN,AISIbrand name ...