It is actually the small 4 screws holding the end on of the Neu Motors. I took the screw into a fasterner shop and they said 2.5 x 3 but couldn't get any screws that small. I asked Steve Neu how big the screws were and he said 0-80 (sorry I typed 0.80 in 1st post) They do exist -
http://www.microfasteners.com.au/fas...ketScrews.html