For tuners and racers using the Sakura D4, the 3Racing TS-SS304 M3 x 4 set screws deliver reliable fitment for suspension and chassis mounting points. Their repeatable dimensions help keep setup changes consistent between runs and simplify pit adjustments.
These screws are useful when establishing baseline setups or swapping components during a race day. Use correct drivers and check torque repeatability to maintain alignment and avoid alteration of setup geometry.