Hirobo HI2531004 M4 x 6 Set Screw Pack (10 pcs) for RC Helicopter Parts  [HI2531004]

Spare M4 x 6 set screws for model helicopters

This pack contains 10 set screws marked HI2531004 from Hirobo, supplied as replacement fasteners for RC helicopter upkeep and small repairs. The set provides 10 pcs of M4 x 6 headless screws suitable for securing components where a compact fastener is required in model assemblies.

Installation tip: use the correct-sized hex driver and apply steady, controlled torque to avoid stripping threads or damaging mating parts. For threaded housings or shaft set positions, confirm alignment and thread compatibility before final tightening.

Maintenance role: these set screws are useful for routine upkeep, part swaps, and fine adjustments on small linkages or mounting points. Keep spare pieces in your kit to reduce downtime during events or practice sessions.