Hirobo HI2539032 M2 x 14 Shouldered Cap Screw for RC Helicopters  [HI2539032]

Durability-focused shouldered fastener

This RC-scale accessory is the Hirobo HI2539032 shouldered cap screw specified as M2 x 14, intended for general helicopter hardware tasks. The stepped shoulder offers a defined bearing surface that helps reduce play and preserves alignment under load.

Common applications include securing linkages, brackets, and small component stacks where repeated movement or vibration can loosen ordinary fasteners. The shoulder keeps mating parts seated and limits axial shift to maintain consistent operation.

Installation notes: engage threads smoothly to avoid cross-threading, avoid excessive torque which can shorten service life, and check shoulder contact regularly during maintenance. Use an appropriately sized hex driver to protect the screw head and surrounding parts. This description treats the item explicitly as an RC-scale accessory and does not imply use outside model aircraft or hobby models.