Part number:
MIK0111147100 SYNCHRONIZATION ADJUSTING SCREW, SSSH. Use in conjunction with a ball driver. Simplifies sychronization adjustment by stabilizing the idle speed via the elimination of the need to exert downward force on the screw in order to prevent cam-out, especially in the case where the driver cannot be held in a coaxial orientation to the screw.
Brand:
motolab
$5.15