Hirobo HI2538011 countersink disk screw M3 x 30, 10 pcs  [HI2538011]

Countersunk M3 Screw for RC Helicopters

The Hirobo HI2538011 is a pack of countersunk Phillips disk screws designed for model-scale helicopter maintenance and assembly. Offered as a small kit of 10 pcs, these M3 x 30 screws provide a flush head profile where a countersunk fit is required, helping parts sit level against mating surfaces in rotorheads and airframe plates.

Use these screws where a recessed head is necessary to avoid interference with rotating components or linkages. The Phillips drive matches common model tool sets and the countersunk disk head gives a broad bearing surface to reduce point loading on composite or plastic parts.

Installation notes: fit the screw into a properly countersunk hole, start by hand to avoid cross-threading, then tighten with a correctly sized Phillips driver until snug, avoiding excessive torque that can strip M3 threads in soft materials. For repairs and tuning, swap identical-length screws to preserve geometry and balance across paired components.