I am performing a simulation and I need two parts to be attached to each other as I am not being able to use a bolt connection, as the countersink bolt head is not completely round. There are 2 plastic plates in between. Is there a recommendation where I can attach these two parts (or all 4 parts together to get some realistic results)?
The two parts highlighted in blue are steel, and there are 2 plastic plates in-between which have a cutout. Any advice will be appreciated. Thanks in advance.