Where to get Metric Bolts

So I am looking for M7-1.0 x 150mm bolts and It seems like they are impossible to find. Does anyone know where i can get a set of 4? I can use 1/4-20 x 6" bolts, but they are a little loose in the stator.

This is for a kawasaki generator...hope you guys don't break out the torches and pitchforks!

The bolts that connect the stator (generator head) to the motor.

Thanks for helping!

XJ