Sceadu SD Collective-Pitch Link Bolt HI0412132 for RC Helicopter Maintenance by Hirobo  [HI0412132]

Pitch-link bolt specification for Sceadu SD

This RC-scale component is the collective pitch bolt identified as model HI0412132 from Hirobo and intended for Sceadu SD series helicopters. The focus is on its purpose within the collective pitch linkage rather than as a general fastener.

The bolt provides a secure pivot or connection for link assemblies that control blade pitch. During replacement or service, confirm that link geometry and travel are correct so the collective moves freely without binding or unwanted play.

Installation notes: start by hand-threading to confirm alignment, then tighten a little at a time while cycling the collective to check for smooth operation. Avoid excessive torque and inspect neighboring ball links and rods for wear while fitted. This item is for RC use only and not for full-sized aircraft.