Customized version of https://www.thingiverse.com/thing:2770539

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=2770539

Using the following options:

clamp_inner_diameter = 74
clamp_diameter_offset = 2
clamp_length = 15
clamp_wall_thickness = 3
wall_plate_thickness = 4
wall_plate_border = 2
num_screws = 1
screw_diameter = 5
screw_opposite_distance = 0
screw_distance_from_edge = 0
screw_recess_diameter = 8
screw_recess_shape = nut
screw_head_nut_thickness = 2