Thank you for the help, just to clarify, are you talking about the pin connector feacture? Or are you saying I should manually create a cylinder and mate it with each hole. There are over 50 parts in this assembly so that would be very tedious.
try to use copy with mates command under the right mouse button in the assembly (after you set up the first pin)
you will basically use zoom in/out and the left (to select new mate references) and right mouse button (to accept).
Hope this helps.