nThanks for your anwser. Yes I saw your video but I also saw another where approach which is opposite of yours. There bahavior was set to deformable (
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) what is more there was a comparison of the stress results of the 3d element bolt and the beam connection, which look the same for the deformable setting for beam.nTo be more precise my connection is not exactly the same because there is a nut and bolt used to clamp and I have a thread in the bottom plate. On the top plate (black) there is bolt head - moved on 2/3 of the real bolt head height on pinned to the face . On the bottem plate (blue) there is thread pinned to the edge on the hole face. For both I am using deformable which should match with RBE3if I am right.nn