If you go to the GM dealership, just tell them what you're looking for, they'll be able to look up the part #. That's how I did it. They're about $1.20 each.
Jacob, is it possible fpor you to find that P/N? I do not have much confidence in our dealership to find that part. They do not seem to want to take the time searching for odd parts like that. When you give them the correct P/N all is well. Thanks