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:

thread_outer_diameter = 7
nut_resolution = 0.5
nut_thread_step = 2
resolution = 0.5
inner_diameter = 8
countersink = 2
texture = exclude
thickness = 2
nut_diameter = 12
drive_diameter = 5
nut_height = 6
head_height = 5
nut_step_shape_degrees = 45
nut_type = normal
non_thread_diameter = 0
wing_ratio = 1
facets = 6
non_thread_length = 0
step_shape_degrees = 45
slot_width = 1
nut_thread_outer_diameter = 9
thread_step = 2
drive_type = socket
head_type = hex
outer_diameter = 14
slot_depth = 2
type = bolt
thread_length = 12
head_diameter = 10