The MCN-M52 counter nut M52×0.75 is a special self-positioning counter nut equipped with a fixing screw. When the screw is tightened, the nut locks itself in place, ensuring it always remains in the same position.
This solution is designed for use with conventional adapters, where the adapter is removed from the device and must return to the exact same position when reinstalled. The self-positioning counter nut maintains alignment automatically.
When using a modular adapter system, where the modular connector stays permanently on the device, this special counter nut is not required. In such cases, the original counter nut or a standard counter nut without self-positioning can be used.