I'm trying to locate the cap set screw that fits on the starter pedal. Mine has been missing for years. The round pedal screws onto the starter pedal shaft on the cab floor. An additional set screw keeps the pedal from unscrewing from the shaft.

Does anyone know what the thread pitch, diameter and length of that set screw is?

Thanks.
Mark


1956 Chevy 3200, 1/2 Ton, 235 CI
https://photos.app.goo.gl/TQQo1YnFjs3U7xB57