Custom made, titanium hardware, designed to replace the BMW 11-12-7-838-075 cap nut and 11-12-7-838-077 washer on the S54 (may fit other BMWs).
Made from 6AL-4V titanium alloy, these will not rust or corrode. Of course, they are lighter than stock!
Its unique design still allows for a traditional 10mm socket for installation.
NOTE. S54 uses THIRTEEN of these. NO rubber grommet is included. You will still have to purchase 11-12-7-830-972 when replacing the valve cover gasket.