In track tuning and frequent rebuilds, the 3Racing M3 x 18 Step Screw (Heavy Duty) provides repeatable clamping for Tamiya TT-01 and TT-01 TYPE E chassis. It is intended to reduce service variability and support consistent setup changes between runs.
The heavy duty step profile offers improved resistance to thread wear and loosening during aggressive driving. These screws suit users who prioritise dependable hardware when adjusting suspension or drivetrain components.
Designed to match TT-01 mounting bosses, the screws maintain correct stack heights and help preserve alignment when swapping parts or installing tuning components. Check engagement depth and use measured torque for best results.