M3 x 6.3 Hirobo HI2539015 Guide Pin for Model Helicopters  [HI2539015]

Compact alignment pin for model-scale helicopters

This item is an RC-scale guide pin designed for alignment and locating in small helicopter assemblies. The marking M3 x 6.3 refers to the nominal thread/shaft diameter and the approximate length used when checking fit.

Apply the pin where a discreet locator is needed to hold parts during build or maintenance. Typical use cases include small linkage blocks, frame alignment points, and subassemblies intended for an M3-sized locating element.

Fitting tips: confirm the receiving feature matches an M3 interface and that there is room for a 6.3mm long pin, set parts in their finished position before inserting the pin, and inspect for free movement where required. This product is a model-scale accessory rather than a full-size aviation component.