YS Engine YSS1015 Propeller Nut - Spare Prop Fastener for RC Models  [YSS1015]

RC prop nut - product summary

This YS Engine propeller nut is a compact spare intended for RC-scale propeller assemblies. It performs the simple mechanical job of holding a propeller on an engine shaft or spinner assembly, giving a reliable clamping point without changing engine tuning or drive behavior.

Fitting is straightforward: remove any locking washers, slide the propeller into position on the shaft, hand-thread the nut until snug, and finish with the correct wrench. Avoid over-tightening; use steady turns and confirm the propeller spins true before flight.

Maintenance requires routine checks: inspect for visible wear, thread damage, or loosening before each session and re-torque after the first run following replacement. The part is intended as a convenient bench or field spare for basic repairs and setup.