The Hidden Mounting Holes in your Breadboards

This story has a bad beginning.

I’ve stored my Robotic Glockenspiel on its side since I finished it in April (it’s huge).  The other day I opened the lid and found, to my horror, that the breadboard had completely pulled away from its adhesive pad – only the wires are keeping the breadboard from falling off completely!

The breadboard has pulled away from its adhesive
The breadboard has pulled away from its adhesive

I immediately started shopping for breadboards with mounting holes and, strangely, didn’t have much luck finding any.  Meanwhile, I saw a project photo where the designer had put screws through a sheet of plywood into the breadboard.  Wouldn’t that risk shorting out the power supply to ground?  I had to learn more.

A little investigation revealed that my breadboards did have mounting holes… hidden underneath the adhesive pad, and not mentioned in the datasheet.

Under the adhesive...a mounting hole!
Under the adhesive…a mounting hole!

A little more surgical cutting revealed the hole, but avoided exposing the power and ground rails.  All I have to do now is find the right size screw and I can mount my breadboards securely in my projects.

Exposing the mounting hole without exposing the wires
Exposing the mounting hole without exposing the wires