I received my ADM DC8 Dovetail but I am having difficulty installing it. The large black thumbscrews are not long enough to penetrate the back of the plate, therefore I can't mount it to the tube rings. I am assuming these are only for a stopper. Which holes do I use? I have tried various standard 1/4 20 bolts but the thread pattern do not match the holes thread pattern on the tube rings.
Short of drilling my own holes am I missing sometime?
ADM DC8 Install on Orion F4 8" Tube Rings
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