Tank bag bolts, What size [?]

[kc]

What size are the tank bag bolts(hold toolbag to gas tank) for my 71 125?  I tried a 6mmx1.00 it would not start, or thread had to much paint/rust.  I tried what I believed was a 5 mm, to small.  Are these metric threads?  Thanks kc

 

[DKWRACER]

Tank Bolts should be 6mm, buy a cheap 22cal rifle cleaning brush and can chuck up in a var. speed drill, use some penetrating oil and go slow !!!

 

[kc]

Thanks, Racer I'll try that.
kc