I’ve got some old adjusto mount rings I’m wanting to use and I need some screws to lock the ring down. It’s a flip over type ring. I thought it was 6-40 but those screws would thread in at all. The threads on the 6-40 line up with the screws that I originally had (one of them had the Allen head part stripped out) does anyone here know what size screw these old rings take?
I ordered some 6-40 because the 8-40 was too big. I also ordered a 6-40 tap. I think it is 6-40 but the threads were a little tight, so I just ran the 6-40 tap in there and cleaned the threads up a bit. Now the 6-40 screws work just fine.
