Abstract: Disclosed is a unique knife plate structure for preventing rotation of a plastic container during the capping operation, wherein the container neck is provided with a finish ring or lip, wherein the knife plate is formed to provide laterally and vertically directed sharp edged or pointed container neck contact spikes each of which spikes penetrates (slightly) a portion of the plastic neck surface at the junction of the underside of the finish ring with the neck to hold the container in a fixed non-rotational position while the cap or lid is being rotationally applied.