These H&R wheel bolts are M14 x 1.5 threaded fasteners sized at 55 mm length with a Mercedes-style ball seat and a 17 mm head in a black finish. They provide the secure clamping needed to mount wheels that require a ball-seat interface, presented as a direct replacement fastener with a factory-style head size for compatible Mercedes applications.
H&R Wheel Bolts Type 14 X 1.5 Length 55mm Type Mercedes Ball Head 17mm - Black