drakon543
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- Feb 15, 2016
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Some mfg dont coat the lug mating surface for 2 reasons. Applying an even coat unless it chrome dip would be difficult so it makes it slightly easier for them. Also having paint/ powder coat/ or chrome right to the lug mating surface can cause the lug nut to "stick" to it making it fairly difficult to remove the lug nut after the wheels have been mounted for a while. Also chrome plated wheels as shown in the above picture tend also to not be plated into that area especially being most modern wheels are aluminum. Once the chrome plate has been damaged by a wobbly socket or just an idiot not being careful will allow the aluminum underneath to be exposed. Bare exposed aluminum will pit and corrode then causing the chrome to get pushed off. So as the comment about it being brand specific is true as some mfg will coat them further into the lug surface and just expect the owner and whatever garage they use to use care.