This RC-scale accessory is the Hirobo HI2539032 shouldered cap screw specified as M2 x 14, intended for general helicopter hardware tasks. It is presented as a compact fastening solution where a shoulder (step) provides a defined bearing surface and controlled spacing between parts.
Use cases include alignment and securement of small linkages, mounting brackets, and component assemblies within RC helicopters. The shoulder helps maintain axial positioning so mating parts remain concentric without relying solely on thread depth.
Installation notes: engage threads smoothly, avoid excessive torque that can deform small parts, and verify shoulder seating against the mating surface to preserve intended spacing. For removal and fitting use the correct hex driver size to prevent head rounding. This description treats the item explicitly as an RC-scale accessory and does not imply use outside model aircraft or hobby models.
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