Most of the time when we do hatching in our drawing the result is not the exact hatch that we desired within our drawing. So to be able to achieve what we desire, we just have to re-position our existing hatch.
This tutorial I did which I discover, while playing on hatch made the desire task easier.
Select the existing hatch with the boundary [Fig.01]
Select the Hatch.. [Fig.02)
Then while still within the selected HATCH right click and select the Origin Point. [Fig.03]
Then drag and select on any corner or end point you want. [Fig.04]
Then you are finish. [Fig.05]
If you still not content with the result, then repeat the process from the beginning.