Losi LOS3927 Button Head Screws M4x40mm N Tracks reliable operation at the rear

reliable operation at the rear axle

Replacing a worn hub keeps shifts clean and consistent

retro-inspired look

Black nylon wheels

Losi LOS3927 Button Head Screws M4x40mm N Tracks reliable operation at the rearThis Losi button head screw is machined from strong steel alloy for reliable strength under the repeated vibration and torque loads found throughout RC chassis and driveline assembly points. Sized M4 x 40mm, it functions as a direct factory replacement for original Losi hardware, restoring correct fit and clamping force anywhere the OEM specification calls for this length and thread pitch. The button head profile offers a low, rounded shape that keeps