I created a Holder for an Eaton Buzzer/Grobhandtaster. With the inserted 3/8" Nut you can screw the Holder to a Microphone Stand. The Buzzer is than screwed to the holder with two M5 20mm or M5 25mm screws and two m5 Nuts
Nut:
Gewinde-∅/ Diameter of Bolt: 3/8"
Schlüsselweite/Width Across Flats: 9/16“ (ca. 14,3 mm)
Dicke/Thickness 8,3 mm