Cooler hing pin missing

I noticed that one of the hinge pins was missing when cleaning the cooler after our last trip. I went on Coleman's site and found the entire hing set for sale - both hinges for about $8. Since I didn't need the entire hinge - just the pin - I gave them a call. They sent the hinge set free. While installing the new hinge I noticed that there is a bit of adjustment that can be done, as the holes in the hinge plate that screws into the cooler body are slotted somewhat. So I set 30 pounds of weights on the cooler top as I snugged up the lower plate screws. It may be my imagination, but the seal seems a bit tighter now when closing and latching the cooler.