Help please, being the idiot that i am i have managed to lose the small screw that holds the Vibrato arm in on my '68 Coronado. Does anyone know where to get a suitable replacement as ive tried various ironmongers and all i can get are metric threads and ive been told the vintage ones are SAE standard which is a slightly different thread. Really dont want to risk stripping the thread.
Any help or advice would be gratefully received
cheers
Jon