this.Axis.X.Labels.SeriesLabels.Font = new System.Drawing.Font("Verdana", Utils.SMALLFONTSIZE, System.Drawing.FontStyle.Regular);

Thanks!

That solve the problem...

You need to use X axis instead of Y. Your code above uses chart.Axis.Y instead of X.

If somewhere in your code, you're setting SwapRowsAndColumns to true, your point label becomes a series label and you should use
chart.Axis.X.Labels.SeriesLabel.Font. I have tried this on my machine and appears to be working correctly. What version of the chart are you using?

 I have tried this:
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                chart.DataSource = data;
               
                chart.Data.IncludeColumn(3, false);
                chart.Data.IncludeColumn(4, false);
                chart.Data.IncludeColumn(5, true);
                chart.Data.SetColumnLabels(new string[ { "Scrap Pct." });

                chart.DataBind();

                chart.Axis.Y.Labels.Font = new System.Drawing.Font("Verdana", 16, System.Drawing.FontStyle.Regular);

but the results are the same I am getting the same graph that I show in the picture above.

Data point labels displayed along the x axis use the axis font properties. In order to change the font for "Scrap Pct." you need to use
chart.Axis.X.Labels.Font = new Font( ... )

The text in the botton is not a Axis.X

 the code to add this text is this:
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                chart.DataSource = data;
                chart.DataBind();
                chart.Data.IncludeColumn(3, false);
                chart.Data.IncludeColumn(4, false);
                chart.Data.IncludeColumn(5, true);
                chart.Data.SetColumnLabels(new string[ { "Scrap Pct." });

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