TonyHallo
150cc
I would think you would use tweezers to start the nut and go from there. At .046" diameter that would work out to .0138 full scale or #6 screw, can't image where # 6 screws would be used other than the dash? The door lugs are drilled at .190" so a No.1 screw would be the right size, as a matter of fact .190" is the smallest hole shown on the lug drawing. Where are you using the 00-90 screws?