... .OEM Accepted Wheel nut, Primary Competitive Advantages:1.High Quality Control, ISO9001:2000 & TS16949:2002 Standard Certificated2.New Product & Prompt Delivery3 ... 72hr salt spray, Nickel/Chrome 96hr salt sprayHardness Treatment: CarbonizedDesign: Open-end, 2Pc Cold Forged/Welded cap, Sctatch-Free, Adjusting, E ... & Red, BlackChrome, 24 Karat Gold Wheel Nut (Bulge Acorn Nut - Open and Close End)