Try the attached .PAT file (dropping the .txt filename extension).
*THIRDUTILITY,12"x4" nominal utility brick 3/8" mortar
;-----------------------------------------------------
; Pattern written by HatchKit v2.6 Hatch Pattern Editor
; HatchKit v2.6 Hatch Pattern Editor(c) Cadro Pty Ltd 1990-2006.
; www.cadro.com.au/hatchkit/
;----------------------------------------------------
;-Comment =Adesk newsgroup
;-Date =16/09/2006
;-Time =1:52:23 PM
;-HatchKitVersion=2.6.0.1468
;-----------------------------------------------------
0,4,4,0,8,11.625,-0.375
180,11.625,3.625,0,8,11.625,-0.375
-90,0,3.625,0,12,3.625,-4.375
90,15.625,4,0,12,3.625,-4.375
-90,4,7.625,0,12,3.625,-4.375
0,0,0,0,8,11.625,-0.375
180,15.625,7.625,0,8,11.625,-0.375
90,11.625,0,0,12,3.625,-4.375
--
Hugh Adamson
Cadro Pty Ltd
www.cadro.com.au