Customized version of http://www.thingiverse.com/thing:281520

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=281520

Using the following options:

hole2 = 0
hole1 = 0
length = 10
geometry = 80
hole_diameter = 3
turn_angle = 160
turn_diameter = 50
countersink_depth = 2
width = 18
thickness = 5
resolution = 200