Customized version of https://www.thingiverse.com/thing:1217308

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=1217308

Using the following options:

plug_length = 38
plug_detail = 100
thread_detail = 2
top_diameter = 30
top_style = hook
top_base_bevel = yes
top_thread_length = 15
top_thread_diameter = 22
top_thread_pitch = 4
bottom_diameter = 22
bottom_style = nut
bottom_base_bevel = no
slot_size = 2
bottom_thread_length = 20
bottom_thread_diameter = 15
bottom_thread_pitch = 4
pole_holder_length = 115
pole_holder_outer_diameter = 40
pole_holder_inner_diameter = 28
pole_holder_base_diameter = 80
gopro_style = triple_nut
gopro_base_height = 48