Customized version of http://www.thingiverse.com/thing:1729060

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1729060

Using the following options:

nutsize = 8
holes = 1
$fn = 12
bezel = 3
sink = 2.5
base = 0
length = 20
spacing = 10
holesize = 4
nutrotation = 30
height = 4
width = 10
nutsides = 6