Hirobo HI2506028 Thin Flat Washer 3.9 x 5.8 x 0.1 mm for RC Helicopter Parts  [HI2506028]

Thin shim washer for RC rotorcraft

The Hirobo HI2506028 washer is a low-profile accessory for model helicopter assemblies where precise spacing and protective seating are needed. Its stated dimensions, 3.9 x 5.8 x 0.1 mm, make it suitable as a micro spacer or a seating washer between fasteners and linkage or bearing surfaces.

In service, this thin washer helps distribute clamping loads over a broader surface on small screws and nuts, reducing point wear on delicate finishes and soft components around control link pivots and bearing seats. It keeps clamped parts aligned and helps reduce surface damage from repeated tightening.

To install, slip the washer over the fastener so the hole aligns with the screw shaft and place it between the head and mating surface or under the nut as required. Because it is only 0.1 mm thick, it is intended for fine tuning of clearances and protection rather than replacing thicker spacers for heavy loads.