The McCormick 6676660A1 is a genuine OEM screw, essential for maintaining the structural integrity and reliable operation of McCormick X-series agricultural machinery. This authentic fastening component is specifically designed for a wide range of models, including X4.35, X4.40, X4.45, X4.50, X5.35, X5.40, X5.45, X5.50, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X8.660, X8.670, X8.680, and X8.690 tractors. Weighing approximately 0.005 kg, this screw ensures a precise fit and long-lasting performance in critical applications.