I found an easy fix and thought I would bounce it off you guys.
The crank holes are too small for the female piece of std chain ring bolts (sleeve) to fit through so the chain ring could not be fully tightened to the crank.
I found by flipping the female pieces around and threading the bolt through the back end, the sleeve fits nicely into the chain ring holes, which are grooved.
Double length bolts with single length sleeves works nicely. Still plenty of clearance between the sleeves and the frame.
Any thoughts?