Silver are Left hand Thread
Black are Right Hand Thread
Lock nut with Flange. Suitable for motors with the supporting motor shaft.
The plastic insert is placed at the end of the nut, with an inner diameter (ID) slightly smaller than the major diameter of the screw. The insert deforms elastically over the threads of the screw, without having threads in turn cut into it. The nylon insert locks the nut by friction against the screw under the applied radial compressive force. Nyloc nuts retain their locking ability up to 250 °F (121 °C).
Prop nut spanner with 2.5 and 3mm Hex. perfect fit for back packs or small...
Very handy for out in the Field. Don't get caught with out a prop spanner....
5mm Nylock Propellor Nuts, perfect for use on with most motors with supporting motor shafts...