This original BMW M12x1.5x40 torx screw is used to attach the rear wheel bearing hub assembly to the rear suspension on F10 M5 Sedan (2013, 2014, 2015, 2016) and F06/F12/F13 M6 Gran Coupe/Convertible/Coupe (2012, 2013, 2014, 2015, 2016, 2017, 2018).
Sold individually. 4 required per wheel bearing assembly.
This part is listed by BMW as BMW part number 31202283404 (31-20-2-283-404) and is described as Genuine BMW Mounting Bolt for Rear Wheel Bearing/Hub.
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BMW Fitments:
5 Series
F10 / F11 (11-16) > M5 (2013-2016)
6 Series
F12 / F13 (12-18) > M6