They fit all 13 factory mounting holes in my 2021 6ft Colorado bed with LINEX spray in the liner. They were pretty easy to install, even for a 66 year old. After inserting the screw into the hole, turn the screw a quarter turn. Tilt the hook and you can look into the seam and see that the retaining plate is where it should be. I pulled the hook down slightly and started tightening it. He will pull the hook into the hole. I didn't have a 12mm ratchet, but a 1/2" ratchet will do and makes the installation much quicker and less of a hassle. Like some others I don't need the silver studs so I painted them a few times. a small kid paintbrush and some Satin Black paint from Rustoleum. Looks great and protects the screws from rust. The screws are strong but will rust. This is inferior stainless steel. I also added a SMALL drop of anti-seize compound to the screw for possible future removal. Haha, that will never happen. All in all a great product at a great price.
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