Starter mount, stripped tread!

Any fast fix for this, upper starterbolt has stripped treaeds!
Broke the nose of the ministarter. Can you use a bolt with a nut on the transside. Don't have the time for pulling the trans out before next race!

I have done that, just installed a through bolt with a nut in the rear. May need some millimg of the case to get a straight plane for the nut.