... ,6.8,8.8,9.8... NUT,LONG NUT,HARDWARE NUTS AND BOLTS . A good non-standard fastenerS manufacturer for your better choice ... Plated,chromium plated,Tin plated,Black phosphating ,anodized ,Parkerising,and Environmental Plated is used in our products,Hexavalent chromium are ... drawing you want ).Service is continuing till after sales and will be responsibility for the mistakes from us.Reasonable price ...