This M3 x 8 countersink disk screw is RC-scale hardware intended for Hirobo helicopter parts. Supplied as a 10pcs pack, the screw has a Philips head and a countersunk profile so the head sits flush with sheet or plate surfaces commonly found on model frames.
Use cases include securing lightweight brackets, frame plates, and small linkage plates where a flush finish reduces interference with moving components. The M3 x 8 length is a common service size for model helicopter assemblies and spare-part maintenance.
Installation notes: ensure the mating part has a matching countersunk hole to allow the screw head to sit flush, drive the screw with the correct Philips driver to avoid cam-out, and apply modest torque to prevent stripping the thread in plastic or soft alloy parts. Keep spare screws in your parts kit for routine maintenance and small repairs.
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