The proper torque setting for our Scope Mount ring screws is 20−25 In/Lbs OR what the optic manufacturer reccomends in their owners manual. You will torque and tighten the bottom ring screws first, then torque and tighten the top screws. The rings act as a clamp around the scope tube. If this process is not followed, you will have issues with zeroing or zero shift with your optic. There should be a slight gap between the top of the ring halves. The ring screws are 9⁄64″ Allen. Rings do not need to be lapped, they are precision machined and self-centering. This torque rating is ONLY for our scope mount rings. Red dot mounts, such as the AD-T1−10 or AD-IM DO NOT have a torque rating. Simply snug the screws down hand tight. Use only the supplied Vibra-Tite VC-3 Threadmate. DO NOT use Loctite on any ADM Mounts. Doing so will damage the threads and void the warranty.