exhaust bolts size
 

1990 300zx 2+2 NA AUTO

anyone know the size of the exhaust bolts/nuts after the cats and at the rear before the axle-------I broke a few and had the others in a can of carb cleaner BEFORE the tornadoes came thru

Missed my house but got part of the garage---not my wifes zx but my VW Bug :( but i cant seem to find the bolts now

so ANYONE know where to get them and size??

thx
ITA