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:

thickness = 2
non_thread_length = 5
texture = include
slot_width = 1
slot_depth = 2
nut_thread_step = 2
step_shape_degrees = 45
resolution = 0.5
thread_outer_diameter = 6
wing_ratio = 1
thread_length = 15
facets = 6
socket_depth = 3.5
type = bolt
head_type = socket
nut_diameter = 12
socket_facets = 6
inner_diameter = 8
outer_diameter = 14
nut_type = normal
nut_step_shape_degrees = 45
nut_thread_outer_diameter = 9
drive_diameter = 5
non_thread_diameter = 0
drive_type = socket
head_diameter = 10
countersink = 2
nut_height = 6
thread_step = 1
head_height = 10