Sensor wires?

My combo did not come with the silver screw to mount the sensor wire holder. My question is to mount this holder I assume you have to take one of the black screws out of the back of the motor? Can someone tell me what size this screw is, I would hate for my sensor to come unplugged off the motor. Thanks
PS> sorry for highjacking your thread

[RBMike]

I think some of the combo's were missing that screw. My buddy got one that also did not have the screw.

[teamtekin]

Sensor cable tie down screw that should have been included is 3mm x 10mm flat heat.

Should also have received 4/40 x 1/4" pan head for mounting the speedo. These cannot be longer or they will screw into the pcb.