Which of the latest models of Ruger single-action revolvers use Torx-head screws to attach the grip frame to the main frame?
I'm pretty sure the Ruger grip frame screws are #6-40, which is the UNF thread for #6.
That, and the entire main frame and grip frame were scaled to Ruger's first SA, the Single-Six. Those #6 screws probably seemed to be all kinds of big enough for those. Then Ruger went with the same exact details on the Flattop .357 and .44 and it all went on from there.#6 screws are kinda little for a salty unit like a SBH (imho).
The SBH is an elegant looking weapon, and I imagine that the idea was to emulate a Colt SAA, and as we all know; COWBOY GUNS HAVE LITTLE SCREWS, daggumit!
Yes, the problem with the slotted screws is not just people using the wrong driver and damaging the slot ... it's the driver slipping off the side and scratching anodizing or grip wood.They don't "bugger up" and the driver stays centered and never runs the side of the hole. I have one set that I use for fitting grip frames.
As mentioned before, the Wrangler has the torx screws. Being a Jeep guy, I have developed a healthy dislike for torx screws. But on the grip frame, they are fantastic. They don't "bugger up" and the driver stays centered and never runs the side of the hole. I have one set that I use for fitting grip frames. They've been in and out a hundred times it seems like and they're still perfect. I'd put them in all my new models if Ruger offered sets. New models only, though. It would be sacrilegious on an old model.