They have a bunch of different names - screw anchors, rivet inserts, retainers, screw grommets etc. I've been able to buy small blister packs of these things but it's not an economical way to buy them (ebay seems to cater for bulk purchases but the vendors are really cheap). You will find some of them aren't exactly the same as what is fitted to your truck either (I had to file a little off the door handle lugs I bought so'd they fit without beating them into the door with a hammer) Have a look through this listing and you'll find what you're looking for - http://www.ebay.com/sch/eBay-Motors/...&_skc=50&rt=nc