Got my car all back together and if someone has the time could they let me know what sizes the following bolts/nuts are?

2 nuts that hold mast cyl to brake booster
4 bolts that hold inspection cover onto transmission

Thanks in advance.

 

MC nuts = M10 x 1.5

All I can tell you about the cover bolts (assuming you have a 1993 4L60) is they are GM PART # 12337828. There is no description of the size in the parts book.