quickie 172 question help pleeease

[Dunn]

does anyone kno the size of the two nuts holding the cat to the bottom of the manifold the ones on the end of the springs (very rusty ones lol)
i avent got a socket small enough so if anyone knos the size so i could pick one up 2moz would be a HUGE help

 

[lemonnobby]

i belive there 10mm

 

[Dunn]

ill check 2moz
if your rite
then i owe you a jaffa cake

 

[Dunn]

but arent they the bolts on the bottom of the cat not the ones connected to the manifold.as they are diff sizes :S