Serpent 440181 half threaded screw M3x19.5, 4 pcs for Mini Spyder MT chassis mounting  [SER440181]

Half threaded M3x19.5 screw for Mini Spyder MT

This is an RC-scale replacement half-threaded M3 screw sized 19.5 mm sold as a 4 pcs pack intended for the Serpent Mini Spyder MT platform. It is a service part used to secure chassis plates, body mounts and other small assemblies where a partial thread length is required to clamp components reliably while leaving an unthreaded shank for alignment.

Fit and compatibility are limited to the Mini Spyder MT family and related SER440001 chassis parts as specified by Serpent, use the original mounting points and maintain matching thread engagement when replacing hardware. Keep original washers or spacers in their positions to preserve ride height and component spacing.

Installation tips: hand-start each screw to avoid cross-threading, tighten progressively and avoid over-torque to protect plastic or aluminium mounting bosses, and consider a low-strength threadlocker if the model sees sustained vibration. Use an appropriately sized hex driver and check thread condition before reuse.