just for information/interest, I have a brand new adaptor sitting on my desk with the 2 screws supplied, as stated they are m6 0.75 pitch x 12 long, I have measured the length of thread protruding through the adaptor it is 5.5mm, a standard m6 X 1 Zink plated steel nut is 5mm thick with a max torque of around 10Nm.
The Anschutz website is stating that ALL models should be torqued to 5Nm, that's around half the available max torque on a standard m6 nut, so did they really need to use the fine 0.75mm pitch thread ????