C# WinForm 3.5 DataGridView Column Autosize Margin

Question

I have a C# 3.5 WinForm project, and I can't find where to adjust Margin used for a DataGridView's Header AutoSize.

AutoSizeColumnsMode is set to None. I can resize the column larger or smaller, then double click to AutoResize, and it pops to this width, using the margin illustrated by my awesome paint skills:

How can I adjust the margin used?

Answer 1

"I want to adjust the margin used by autosizing"

The property used to set a DataGridView's Margin Column size is slightly less obvious:

DataGridView1.RowHeadersWidth = 41;

Answer 2

Something like this: C# AutoSize DatagridView Populated By Linq Query