When installing one of the CAMS, a plug popped out of the finished wood that had clearly been fashioned and glued into the wood to hide a defect that occurred when drilling the CAM hole. The hole for the CAM was drilled too deep and the finished wood had split open on the finished wood side. The tightening of the CAM pushed the fashioned plug out when installing a leg of the table. You can see the silver CAM through the hole in the finished wood in the photo attached, along with the fashioned plug.