Hi Jim,
I didn't realize you were using a reader, here's the info you needed, I think!
The shaft diameter is 6mm, the body height is 36.5mm / 1.44 inches, body width is 25mm / .98 inches, body depth after mounting looks to be 43mm / 1.69 inches and the maximum panel thickness would be 7mm as the thread depth is 9.5mm and the nut thickness is 2.5mm. PM me if I missed something again or if you've anything else to add!
Gordy
edit: you may need to allow for some height as the connector pins exit the bottom and are not included in the 36.5mm measurement...