4 x 15.8 Needle Pin for RC Helicopter Assemblies - Hirobo HI2509011  [HI2509011]

4 x 15.8 Needle Pin Details

This Hirobo HI2509011 needle pin is an RC-scale component at 4 x 15.8 intended for helicopter spots where a compact pivot or retention pin is required. It serves as a basic mechanical fastener for short shafts, control linkages and small sub-assemblies commonly found in model helicopter maintenance.

To install, align the mating holes on the linkage or arm, push the needle pin through the shaft or hole, then secure it using the model’s standard clip or retaining method. The part is supplied as a serviceable replacement for routine maintenance and trimming, not as a structural upgrade.

When setting up and tuning, a correctly fitted needle pin offers a stable pivot for control links and small rotating parts, helping keep geometry consistent during tail and cyclic adjustments. Carrying spare pins reduces downtime when field repairs are required.