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:

nut_type = normal
nut_step_shape_degrees = 45
thread_step = 1
thickness = 2
thread_outer_diameter = 3
step_shape_degrees = 45
nut_resolution = 0.5
socket_diameter = 5
nut_thread_step = 2
head_diameter = 4
non_thread_length = 0
inner_diameter = 9
type = bolt
nut_diameter = 12
head_type = hex
countersink = 2
nut_height = 6
non_thread_diameter = 0
head_height = 2
outer_diameter = 14
nut_thread_outer_diameter = 9
resolution = 0.5
thread_length = 25