Need to know what type of thread is on the 5 screws holding the plastic carb to the tank, same thread as on the long screw which holds the air filter to the carb. See pic - part # 534
Approx 3/16 inch it seems.
I have various very similar screws in my boxes and jars of old nuts, bolts and screws but mostly British, Euro and Japanese - some are very close but not exact. Presumes it is a standard USA type of thread. Been through every website about B and S parts, none say what the actual thread type is.
