This M3 x 8 countersink disk screw is an RC-scale hardware component meant for Hirobo helicopter assemblies. Supplied in a 10pcs set, each screw has a Philips head and a countersunk shape so the head sits flush against sheet or plate parts commonly used in model frames.
Typical uses are fastening light brackets, frame plates, and small linkage plates where a flush head prevents contact with moving parts. The M3 x 8 length is frequently used in model helicopter service and spare-part inventories.
Installation tips: make sure the receiving part has an appropriate countersunk hole so the head sits flush, use the correct Philips driver to reduce cam-out, and apply conservative torque to avoid stripping threads in plastic or soft alloy components. Keep extras on hand for routine repairs.
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