J.W. Winco 1804.1-M40X1.5 Slotted Spanner Lock Nut with Polyamide Insert, GN1804.1, M40 x 10.5, Steel Zinc Plated
These slotted spanner lock nuts are self-locking because of the polyamide insert. They can therefore also be used as a setting nut and may be used more than once. The thread series corresponds to DIN 981 roller bearing slotted spanner nuts.