I just don't like these action screws at all, Peter. Knowing that there must be others like me out there who shoot this popular varmint rifle, I found some socket head action screws available for this rifle on line. For those of us that tinker with our rifles until they are as perfect as we can get them, these screws will be used quite a bit, so why frustrate myself? It has been years since I used to dial in new rifles. I forgot how much fun it can be. I should have the CZ back next Tuesday, and then some more range time. This hot little rimfire is a blast to shoot. A yard full of evil varmints awaits the crack of the mighty 17 HMR!