I was attempting to adjust my parking brake from inside the cabin today, and the adjustment bolt snapped. Sheared right off. I'm currently trying to find out what part I need to fix this. So if anyone has the part number, or any information that would help me it would be much appreciated.

 

The cable comes complete, might be able to contact someone that is parting out they're car instead of buying new!

Otherwise it's MN102750HB

Either way, to correctly adjust your parking brake you should make the adjustment at the wheel.
The parking brake is often forgot about so I took my calipers and rotors off, cleaned and lubed the brake shoe contact points, as well as the star adjuster to prevent future rust.

Once you go to make your adjustment slowly tighten the star adjuster until the rotor requires more effort to turn by just your hand. Then back it off a 1/2 to 3/4 of a turn so there is no drag with the parking brake disengaged.

Adjustment at the handle can then be further fine tuned to your liking.