Hirobo HI2539031 Hexagon Button Bolt M3 x 5 Pack of 10 — for RC Helicopter Parts  [HI2539031]

M3 x 5 Button-Head Hex Bolts — 10 Pieces

This replacement pack contains 10 Hirobo hexagon button bolts, M3 x 5, designed for repair and assembly where a small rounded head is preferred. They suit frames, mounts, linkages and other model components accepting M3 hardware.

Fitting notes: select a suitable M3 hex driver and tighten with moderate, controlled torque to prevent stripping. Avoid overtightening into plastic or thin alloy parts to maintain thread integrity. For components exposed to vibration, use threadlocker or appropriate locking washers.

Maintenance and adjustment use: the button-head design reduces interference with moving components and is ideal for tight-clearance applications often found on RC helicopter assemblies.