This is Yokomo Racing Performer High Precision Machined Titanium M3 x 3mm Centering Screw 4 pcs Silver. A headless screw that can be used to fix the motor mount and attach the upper deck on the chassis of a touring car, etc., and can move freely when rolling while positioning to bring out the flex of the machine. In the past, set screws were sometimes used for similar setups, but this high-precision machined screw allows for greater positioning accuracy and is made of titanium for a lighter weight finish. 4 pieces.
Yokomo Racing Performer High Precision Machined Titanium M3 x 3mm Centering Screw (4 pcs)