98 Camry 4 cylinder. What size bolt for crank pos. Sensor?
 

I have a 98 Camry 4 cylinder that was starting fine. All of the sudden it cranks and cranks before starting. It has spark, and fuel pressure. Replaced fuel pump, filter. Still hard to start.

Decided to replace crank shaft position sensor, went to remove it and the bolt that should hold it in is missing. Does anyone know what size bolt I need to secure the sensor in place?

Measure hole diameter in bracket. Its either a 10 or 12 mm.