Don't feel satisfied with product
As soon as I attempted to insert a lock cylinder into the top hole and tighten down with the thumbscrews, the unusual alignment of the thumbscrews(weren't pointed directly at the side of the cylinder) kept causing the lock to twist and the thumbscrews kept slipping off the bottom of the lock. The plastic ring that reduces the hole size then cracked. I didn't even tighten the screws that tight. I ended up using a piece of leather as a shim to hold the lock cylinder in place. This is a kwickset lock cylinder and is the most common size. Too much work to set a cylinder.
Rating: 3 stars