We had 12,000 pieces of these large custom precision cam nuts manufactured in mild steel for our construction component manufacturer.  Overall length measured 91.7MM and max OD at the base was set to 23.88MM.  M8 X 1.25 6g thread was incorporated on both sides and M12 X 1.75 6h thread was tapped in the center of the base.  Both shoulders were tuned to a 13.37-13.48MM diameter.  Material certs and certificate of conformance was provided with the parts.