I was driving my truck and it stopped moving so i was like ok a loose diff screw i investigate more the diff screw snapped in half?...pics below but how?...and how can i replace it can i puit a exaust amnifold screw in there instead?

EDIT: forget tge firsrt pic in there on accident

Will this work?

Guys i got it its 3:30 in the moring but its finally fixed...i am going to test it out tomm. I will be back tomm. to post resules.!