Close proximity panel mount connectors include a first and a second connector body, each provided with a connection interface at an interface end, a mounting flange with a planar surface at a mounting end, a fastener tab of the mounting flange provided with a tab fastener hole at a male side of the connector body and a fastener slot of the mounting flange formed at a female side of the connector body, a slot fastener hole provided through the mounting flange to the fastener tab slot. The fastener tab of the first connector body seats within the fastener slot of the second connector body when the male side of the first connector body is seated adjacent to the female side of the second connector body, coaxially aligning the tab fastener hole of the first connector body and the slot fastener hole of the second connector body.