Fenestron M2 x 20 Cap Screw, 2 pcs - Hirobo HI2532050  [HI2532050]

Fenestron M2 x20 replacement screw

This replacement cap screw is an RC-scale fastener listed as HI2532050, supplied as 2 pcs and sized M2 x 20 for use with Fenestron tail assemblies. It is designed to fasten components in a Fenestron-style tail rotor on model helicopters where M2 threads are specified.

The part plays a straightforward tuning role: the correct screw length and secure fastening keep tail rotor parts aligned, helping maintain consistent tail response in flight. Check mating surfaces and threaded holes before fitting and replace screws in matching pairs when hardware needs renewal.

Installation notes: insert the screw into the threaded mounting point of the Fenestron tail assembly, run it in until seated, and confirm component alignment before final tightening. Avoid over-torquing and ensure there is no binding or contact with the tail rotor blades or housing after fitting.