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:

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