2011 500 HO–Idle mixture screw

Hello guys , I have been trying for a week through my dealer to get a new Idle mixture screw , when trying to remove mine I destroyed the brass screw , they do not show it in their carb breakdown, and have been in contact with Polaris .
I can not believe that this is not a common replacement part.(brass in all).

can any one shed some light on this , part # or any ideas of where else to get one ??

thanks
ragweed