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

Needle Pin 4 x 15.8 Overview

This Hirobo HI2509011 needle pin is a compact RC accessory in a 4 x 15.8 size designed for helicopter locations where a small pivot or retention fastener is needed. It works as a straightforward mechanical pin for short shafts, control links and small sub-assemblies commonly serviced on model helicopters.

Fitting is simple: line up the linkage or arm holes, push the pin through the shaft or bore, then secure it using the appropriate clip or retaining method used on your model. The component is intended as a serviceable replacement for routine upkeep and trim changes rather than a structural upgrade.

In practice, this type of needle pin gives a stable pivot for control links and minor rotating parts, helping preserve control geometry during tail and cyclic adjustments. Keep spare pins in your toolkit for rapid swaps at the field.