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_thread_step = 1
nut_type = normal
head_diameter = 8
drive_type = socket
slot_width = 0
thread_step = 1
facets = 6
nut_thread_outer_diameter = 6
drive_diameter = 0
wing_ratio = 1
step_shape_degrees = 45
head_type = socket
nut_step_shape_degrees = 45
texture = include
countersink = 2
thread_length = 10
slot_depth = 0
type = nut
nut_diameter = 8
head_height = 5
nut_resolution = 0.5
resolution = 0.5
thread_outer_diameter = 6
inner_diameter = 8
non_thread_length = 0
thickness = 2
outer_diameter = 14
non_thread_diameter = 0
nut_height = 21