The Hirobo HI2538009 pack supplies ten M3 x 26 countersink disk screws suitable for general fastening in RC helicopter builds. The countersunk head ensures the fastener sits flush with panels and small fittings.
Use these screws where an M3 x 26 countersink is required; they are intended for panel joins and minor structural attachments. Fit the screw until the head is seated and stop when the connection feels secure to avoid damaging threads or thin parts.
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