Tamiya TT-01 Chassis Step Screw M3 x 18 Heavy Duty Upgrade - TT01-10/HD by 3Racing  [TT01-10/HD]

Durable step screw for TT-01 series

This M3 x 18 step screw is a replacement fastening component for use with Tamiya TT-01 and TT-01 TYPE E chassis. The stepped head provides part location and clamp without extra washers, making assembly cleaner and more consistent.

Designed for the models listed in the title, this heavy-duty steel option replaces standard screws when you need improved clamping reliability during assembly, repair, or setup adjustments.

Practical fitting tips: select the correct hex driver to match the screw head, align mating parts before tightening, and use moderate torque to avoid stripping chassis threads. Check and retorque after a short test run and after the initial break-in period for reliable results.

Tuning note: fitting heavier step screws can reduce screw deformation under load and help retain the alignment of suspension mounts and gearbox interfaces, which supports more consistent handling after setup changes.