Try this.....
;;;Custom Hatch Pattern
;;;Copyright 2004 by RCI
*BR65-215-M, 65mmx215mm brick elevation stretcher bond with 10mm mortar joints
0,0,0,112.5,75,215,-10
0,-112.5,10,112.5,75,215,-10
90,0,0,75,112.5,-85,65
90,-10,0,75,112.5,-85,65
Save this into the acad support folder as
BR65-215-M.PAT
Enjoy