need bolt sizes

hi...ive been rebuilding a 94 acura integra ls and its missing some bolts...i need to know the bolt sizes for the AIR FILTER BOX and the HEATSHIELD (header pipe heatshield)...this would help me out a lot...thanks everyone for your help...

hmm let me recall. i have not had the air box in awhile. but i think they are 12 mill. and the heat shield should be 12mill also. almost everything on thses cars is 10mil, 12mil, or 14mil.