To attach the #2198 Dual-Joint Tilter Bracket to the Scrim Jim Cine frame, the 3/8"-16 adapter is necessary. This can be found in the body of the tilter - take the circular cover off of the area with the 1/4 - 3/8 label. Do not screw the adapter on too far, only screw far enough to be flush with the original 1/4"-20 thread. You then need to bring the black dial up against that the adapter for snug fit. Attached is a completed example of such.