Abstract: A junction plate assembly for a subsea structure having a first junction plate with a plurality of control connections contained therein, a second junction plate with a second plurality of control connections contained therein, and a connector extending generally centrally of the first junction plate for engaging a receptacle of the second junction plate. The first junction plate has an umbilical cable connected to the control connections. The connector is a shaft which extends through the first junction plate and has one end extending into the receptacle of the second junction plate. The end of the shaft has an external acme thread in mating engagement with an internal acme thread of the receptacle. A handle is connected to an opposite end of the shaft for rotating the shaft. The control connections may be either hydraulic or electrical connections.