Just got a few Arduino Mega clones from Terry (reasonable price!).
You may need to install an Arduino (here a Mega), in a box/case or other platform.
The Arduino designers made major mistakes in the placement of the mounting holes.
These were placed too close to headers etc.
You can make this happen if you use 2-56 screws.
You can make the washers as in post #290
http://forum.arduino.cc/index.php?topic=445951.msg3161698#msg3161698
You can make acrylic nuts as in post#109
http://forum.arduino.cc/index.php?topic=445951.msg3115248#msg3115248
