... )Surface:zinc white,blue, nylon insert lock nut:Item name: high quality nylon insert lock nuttdesign prevents burnouts and eliminates the need ... zinc,bule zinc,color zinc,black zinc,chromeStandard: JIS,BS,GB,ISO,DIN,AISIbrand name: JMorigin of place: Guangdong,China(Mainland ... as soon as possible.Production Line:Quality Control: nylon insert lock nut