Hirobo HI2509021 Needle Pin 1.5 x 7.8mm for RC Models  [HI2509021]

Replacement needle pin for model control joints

The Hirobo HI2509021 needle pin is a nominal 1.5 x 7.8mm replacement intended for retention and alignment of small linkages on helicopters and other RC models. It provides a straightforward method to secure clevises and small arms in position.

Key installation points are correct bore size and full seating: check clearances, clean mating holes, and ensure the pin fits without side play. These pins offer a low-profile retaining point that supports intended rotational movement while keeping control geometry stable.

Inspect regularly and replace any pin that displays bending, heavy wear, or corrosion to avoid added slop and degraded control response.