I guess I should have put that on here, my bad. I am trying to put the flat ones in. One has a cotter pin, of which I guess you would spread them just a bit, then the others have a straight pin and I guess you clip them and install them and then somehow flatten the end. But I dont know how to do that. This is all new to me. I am getting the slots open like they need to and I am going to use a toothpick to pin them for safety.