I bought these to seal my new smoker. After installing the gasket on the grill's lid, I had a small gap where the gasket was preventing it from closing completely. These locks do their job very well. They are strong and durable and really good value for money. I only needed 2 but other similar caps were only 2 more expensive so I gave them to my other smoking friends. I knew they didn't include screws, so I got a set of Lowe #10 self-drilling metal screws, the 1/2 inch length fitted perfectly. Now with seals around and these baddies closing the hatch, my smoker is sealed like a submarine. Definitely recommend!