Abstract: A unitary, molded plastic junction clamp having a generally T-shaped final configuration for securing the wiring junction between a trunk portion and a split out branch portion of a wiring harness includes a flexible plastic main panel having a generally rectangular trunk section and a crossing generally rectangular branch section, a pair of flexible cable ties disposed on opposite sides of the trunk section and being integrally molded therewith and a pair of flexible cable ties associated with the branch portion. As a one piece molded unit the junction clamp begins as a substantially planar member and is able to be readily formed around the trunk portion of the wiring harness. The opposite pair of cable ties encircle the trunk portion at which point they are secured and tightened.