This Eibach wheel bolt is specified for Hyundai S Coupe applications and lists M12 x 1.5 thread, 30mm length, 17mm hex and a round seat. It supplies the exact thread and seat geometry for wheel hubs and wheels that require this bolt specification, functioning as the correct replacement fastener when the vehicle fitment calls for these dimensions.

Eibach 91-96 Hyundai S Coupe Wheel Bolt M12 X 1.5 X 30mm X 17mm Hex Round Seat