This Eibach wheel bolt is an M14 x 1.5, 37mm shank fastener with a 19mm hex and a spinning, round-seat head finished in black. The spinning head and round-seat profile match wheels designed for this geometry, while the black finish provides a subdued look. Specify this bolt where those dimensions and spinning-head style are required.
Eibach Wheel Bolt M14 X 1.5 X 37mm X 19mm Hex Spinning Round-Seat Black Finish