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:

head_height = 5
non_thread_diameter = 0
thread_length = 25
drive_diameter = 5
slot_depth = 2
thickness = 2
nut_step_shape_degrees = 45
thread_outer_diameter = 8
nut_thread_step = 1.2
facets = 6
countersink = 2
wing_ratio = 1
nut_thread_outer_diameter = 3.8
type = nut
nut_diameter = 7.8
slot_width = 1
nut_type = normal
nut_height = 4
non_thread_length = 0
thread_step = 2
step_shape_degrees = 45
head_type = hex
outer_diameter = 14
inner_diameter = 8
drive_type = socket
texture = exclude
head_diameter = 12
nut_resolution = 0.5
resolution = 0.5