Locknut M49x0.75 with locking screw

Rusan counter nut M49x0.75 with locking screw Article number: MM49x075SS EAN: Many manufacturers of attachment devices cannot build a proper counter nut. Either there is no set screw for clamping, or there is a set screw present that presses directly on the thread of the attachment device and damages it. With the counter nut from Rusan, both problems are eliminated. On the one hand, the counter nut can be fixed in one position, and on the other hand, the counter nut has a pressure piece that prevents the set screw from damaging the thread.