Extra Replacement Set Screws can be found in our store at:
HARDENED STEEL PINION GEARS
Hardened steel motor pinions precision machined and stamped with the number of teeth.
One 5-40 set screw included. 1/16" ALLEN WRENCH (NOT INCLUDED) FITS THE 5-40 SET SCREW.
Can be run on cars using a 2mm motor shaft including Associated and LOSI.