Hirobo HI2538011 M3 x 30 Countersunk Phillips Disk Screws, Pack of 10  [HI2538011]

Countersunk Fasteners for RC Helicopter Assembly

The Hirobo HI2538011 set contains ten M3 x 30 countersunk Phillips disk screws intended for model-scale helicopter assembly and field repairs. The stainless appearance and countersunk design allow plates and rotorhead parts to sit level against their mating surfaces.

These screws are best used where a recessed head is required to avoid contact with rotating components or control linkages. The Phillips drive matches standard modelling toolkits and the disk-style countersunk head offers a broader bearing area to lower localized stress on plastic or composite mounting points.

Fitting advice: ensure the hole is correctly countersunk before insertion, start the screw by hand to prevent cross-threading, then finish with a suitable Phillips driver without over-tightening. When restoring or tuning, swap identical-length screws as a set to keep geometry and balance consistent across paired items.