Hirobo HI2505016 M5 hexagon nylon lock nut (thin) 10 pcs  [HI2505016]

Thin M5 nylon lock nut for RC helicopters

This Hirobo M5 hexagon nylon lock nut is a small-scale RC helicopter hardware part supplied as a pack of 10 pcs. The thin profile is intended for assemblies where standard nut height interferes with nearby components, and the integrated nylon insert helps resist vibration-induced loosening common in rotorcraft models.

Use this nut wherever M5 threaded fasteners are specified within helicopter general parts; its low stack height allows installation in tight clearances while providing a locking function to maintain preload on bolts under flight vibration. As an RC-scale accessory, it serves a maintenance and tuning role by reducing the need for frequent retightening in high-vibration locations.