The popular D-submin connectors are widely used on
several avionics systems. The connectors is normally
secured with a couple of 4-40 screws. These tiny screws are
difficult to deal with in tight places so I recommend finding
these thumb screws and using them instead. They are easily
checked for tightness with just your fingers. They can also
be drilled for safety wire.

I found these on a old computer monitor cable.

The regular screws require a tiny screw driver that
keeps slipping out of the slot.


Paul Lamar