O.S. Engine OS24025801 M3x14 Engine Mounting Screw  [OS24025801]

M3x14 Engine Fastener Overview

This M3x14 mounting screw is an RC-scale engine fastener made to secure small model engines to their mounts. The item is sold singly and fits applications where an M3 threaded fixing is specified on engine mounts or mounting plates used on nitro or small gasoline RC models.

During installation, verify full thread engagement and that the 14 mm screw length clears internal parts before tightening. Use the correct driver for the screw head to prevent rounding and apply moderate torque—over-tightening can strip mount threads or deform the mount. For vibration resistance, consider a removable threadlocker compatible with model hardware and recheck fasteners after the first running session.

As routine maintenance, inspect the screw for thread wear or damage, replace any fastener that shows stripping or heavy corrosion, and ensure mating surfaces sit flat without gaps to maintain engine alignment and predictable operation.