Customized version of http://www.thingiverse.com/thing:193647

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=193647

Using the following options:

step_shape_degrees = 45
nut_thread_outer_diameter = 9
outer_diameter = 14
non_thread_diameter = 0
head_type = countersunk
thickness = 2
type = nut
nut_diameter = 12
inner_diameter = 8
thread_outer_diameter = 8
countersink = 1
nut_type = wingnut
resolution = 0.5
socket_diameter = 5
nut_step_shape_degrees = 45
thread_length = 25
head_diameter = 12
nut_height = 6
nut_resolution = 0.25
thread_step = 2
non_thread_length = 10
head_height = 5
nut_thread_step = 2