My in-law get the exhaust shop to weld the nut and managed to turn it out. Then he use the normal nut on all lug. Hakitrade(again) sell the normal nut at RM5 each(maybe), forgotten already when i bought full set last time..
Question: Does we need the lock nut badly? as i think that nowadays there's less risk of ur rim to be stolen, and they put the brick to support ur car. I think so...