... 8,8.8,9.8.. Non Standard Bolts,Non Standard Hardware,USA Bolts And Nuts.1.What’s the specification of our Products ... ,chromium plated,Tin plated,Black phosphating ,anodized ,Parkerising,and Environmental Plated is used in our products,Hexavalent chromium ... the quality control6. Certificate:Provide dimensions report,chemical report and other testing report .Good service We can manufacture nonstandard ...