Use the following hardware for securing the buttons to the button plate.
- 4x M2.5 - 6mm f/f standoff
- 4x M2.5 - 4mm screws
- 8x M2.5 - 6mm screws
- 4x M2.5 - hex nuts
The button plate needs standoffs in order to be secured to the case. Grab 4x M2.5 female-female standoffs. Use 4x M2.5 x 6mm long screws to secure the standoffs to the four mounting holes on the button plate.
Install Button Screws
Place the STEMMA button over the two mounting holes on the button plate. Insert 2x M2.5 4mm long screws through the top of the mounting holes on the button PCB.
Fasten Button Screws
While holding the button PCB in place, install and fasten 2x M2.5 hex nuts to secure the button PCB. Repeat for the second button.