Bolt Connector 3D solid tet mesh

Hello, I am using 3D tet elements to model a variety of bolted flange plates. I would like to use simplified 1D beam elements as bolts, with RBE2 to connect to each part. Is there a way to use the connector panel to help make this easier? I cannot seem to figure out how to do it for 3D meshes. Also, I have not actually meshed the holes as I am trying to reduce geometric complexity - I have just included a circular 'washer' surface for the RBE2 elements to grab on to. My solver is Optistruct.

Thank you,

Justin