Crank Special Screw V4, part number 857077
Fitment - RSV4 09-20, Tuono 11-20
V4 Crank Special Screw, part number 857077, item number 13 in the diagram.
This holds the timing plate on the right hand side of the engine as can be seen. It comes pre thread locked so need to potentially get messy, just insert, torque it up and leave it be.
Please feel free to send us a message for any other special screws or parts you might be struggling to find, we will be glad to help.