1. The conical nut is fixed to the main shaft of the engine, the conical nut is 10MM
2. airplane spinner with A 5MM screw in the propeller cover is directly fixed on the center hole of the main shaft of the engine.
Please be sure to confirm the diameter and center hole size of your engine main shaft first, and then you can use it after confirmation, remember! Remember! Remember!
3 inch Model airplane spinner for 26CC gasoline engine (with 10MM conical nut, one metric screw of M5*50MM, center hole of propeller cover round chassis 10MM)
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