Try this, generated by the brick/tile pattern window as shown below in HatchKit 2014:
Brick0.png
;-------------------------------------------------------------------------------
; Written by HatchKit 2014 Beta
; HatchKit 2014 Beta(c) Cadro Pty Ltd 1990-2014
;
www.hatchkit.com.au/
;-------------------------------------------------------------------------------
;-Date : 28/07/2014
;-Time : 9:40:34 AM
;-HatchKit Version : 3.0.1.6053
;-HatchKit Output Filetype : AutoCAD
;-HatchKit Licensed To Name : hugh adamson
;-HatchKit Licensed To Organization :
;-HatchKit SerialNumber : ============
;-------------------------------------------------------------------------------
*Brick0,HORIZONTAL 500mmx300mm bond=1/2
90,0,0,300,250,300,-300
0,0,0,0,300
HatchKit 2014 is currently available in a public beta test version until 1st September 2014