I created a version of the port with threads to fit these connectors. The threads were created using https://www.thingiverse.com/thing:193647. The thread model is attached as well in case someone has a use for it.

I believe these are the options I used. I have been making several threaded objects recently and was not as careful with my file names as I should have been. If they are not the settings I used they should be very close.

head_type = hex
nut_type = normal
drive_type = socket
slot_depth = 2
head_height = 5
thread_length = 15
inner_diameter = 8
outer_diameter = 14
head_diameter = 12
countersink = 2
non_thread_length = 0
texture = exclude
drive_diameter = 5
facets = 6
nut_diameter = 12
socket_facets = 6
wing_ratio = 1
nut_thread_step = 2
thickness = 2
nut_step_shape_degrees = 45
socket_depth = 3.5
thread_step = .9
non_thread_diameter = 0
thread_outer_diameter = 10.5
nut_height = 6
type = rod
resolution = 0.5
slot_width = 1
nut_thread_outer_diameter = 9
step_shape_degrees = 45

Monoprice Dual

No

No

.2

20%