yukonjasper wrote:48376 Weaver Thumbnut Tactical Mounts SPR 1" web lookup says: 6-48 screws: 15 in/lbs 8-40 screws: 18 in/lbs
I'm identifying these as the cap screws so, first question is, how do I know what screws I have? understanding that there isn't much difference in the spec but was wondering if there was a difference - deforming the tube would not be cool.
Also, any guidance on the thumbscrew mounting to the receiver.
Where should I be applying thread locker, if at all.
Use Blue Loctite for the mount screws (make sure all oils are removed before applying loctite). If you have 2 different set of screws, the 6-48 will be smaller than the 8-40. A #6 screw is .130" in diameter the #8 is .160" in diameter. Take the measurement, if needed, at the threaded portion. A caliper or micrometer will help. You might also be able to determine using a scale (ruler) if it goes down to 1/64th of an inch. The #6 is 9/64 and the #8 is 5/32
Once determined, you can apply the proper torque. Make sure to follow "cross-torque" pattern. If in doubt, youtube can be your friend. Just search Scope Mounting