I'm trying to use bolt connectors in simulation in order to test the bolt connections with two diffrent bodies.

i created 4 holes with (hole series) feature and i used (smart fasteners) to place the fasteners, everything is done correctly (no interferencing,no penetration).

i started a study with "no bolt" configuration, i tried to set the bolt connectors manually.

I select the edge of the head bolt on the solid and the edge of the nut on the back of the other solid, when i attempt to do this an error message appear saying that i must select a concentric entities. when i used the hole series i created holes throught the two solide bodies.. how could they aren't concentric !!!?

i double checked for the allignement and concentric everything is ok.

i started i new study with converting toolbox fasteners to bolt connectors but it doesn't work also.