The power connector conforms to the IEC 601310-10 standard (5.5mm OD / 2.1mm ID)

The specific dimensions of the socket and jack are:

These are the mechanical data from the socket:
Diameter opening 6.5 mm
Diameter center pin 2.0 mm

Power connector jack mechanical dimensions:
Diameter: 5,5mm
Inner diameter of the hole: 2,1mm
Length of the bolt: 9mm