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The Esco Skirt Nut, for hub piloted wheels, centers the rim/tire onto the wheel and prevents dangerous “clocking”, the number one cause of loose wheels that can result in catastrophic “Wheel Offs”. The Skirt Nut flange nut meets and exceeds Standard SAE J1965. Its design features extended threading which allows the Skirt Nut to penetrate into the Hub-Piloted Disk Wheel an extra 3/16” (5mm) into the stud hole preventing any movement which results from extra space between the stud and hub base (5mm). Coated in a graphite based sealant, unlike standard flange nuts, Skirt Nut will not rust onto the wheel/rim, causing issues when servicing or changing the wheel. One part number fits all 22mm hub piloted applications.