Customized version of http://www.thingiverse.com/thing:299663

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=299663

Using the following options:

bolt_diameter = 3
height = 35
diameter_bottom = 5
nut_diameter = 5.5
articulation_thickness = 1.5
opening_width = 2
outer_diameter = 24
diameter_top = 10
washer_diameter = 5.5
pressure_point_thickness = 4.5