Tamiya TT-01/TT-01 TYPE E M3 x 18 Step Screw (Heavy Duty) by 3Racing TT01-10/HD  [TT01-10/HD]

Heavy-duty step screw for TT-01 chassis

This M3 x 18 step screw is an RC-scale replacement part intended for Tamiya TT-01 and TT-01 TYPE E chassis. It serves as a direct fastening component for chassis plates and related mounting points where a stepped head or shoulder helps locate parts without additional washers.

Compatibility is limited to the named models in the product title, and the part is offered as a heavy-duty steel option to replace standard hardware when greater clamping reliability is desired during assembly, maintenance, or setup changes.

Installation tips: use the correct hex driver to match the screw head, align parts before tightening, and apply moderate torque to avoid stripping threads on plastic or composite chassis components. For repeatable setups, check screw tightness after a short test run and after initial break-in.

Tuning role: replacing standard screws with heavier duty step screws can improve perceived chassis rigidity and reduce screw deformation under load, which helps maintain alignment of suspension mounts and gearbox interfaces during practice or setup adjustments.