if you're heading to Sears, check this out:

http://www.sears.com/sr/product/summary/productsummary.jsp?BV_SessionID=@@@@1534735636.1030896948@@@@&BV_EngineID=ccjgadcgdkkegkjcehgcemgdffmdfin.0&vertical=SEARS&bidsite=&pid=00952154000

if i'm reading correctly, you damaged the allen screw, but this may be able to pull that out...