[
  {
    "a": "front",
    "b": "screw_0",
    "mm3": 3.4475474673370985,
    "intentional_reference_engagement": true
  },
  {
    "a": "front",
    "b": "screw_1",
    "mm3": 3.4475474673371016,
    "intentional_reference_engagement": true
  },
  {
    "a": "coax",
    "b": "plug",
    "mm3": 0.22111707193210867,
    "intentional_reference_engagement": true
  }
]