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

Fenestron cap screw for RC tail

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 intended to secure components in a Fenestron-style tail rotor on model helicopters where M2 screw threads are specified.

The part serves a simple but important tuning role: correct screw length and secure fastening keep tail rotor parts aligned and stable, which helps maintain consistent tail response during flight. Inspect the threaded holes and mating parts before fitting and replace both screws as a pair when matching hardware is needed.

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