A wall tie for use with insulated concrete panels, the panels being formed with insulation layer(s) sandwiched between concrete layers, the wall tie comprising: a first structural member comprising a first hub and a pair of first extension members coupled to said first hub such that the first extension members extend outwardly from the first hub in generally opposite directions; a second structural member comprising a second hub and a pair of second extension members coupled to the second hub , such that the second extension members extend outwardly from the second hub in generally opposite directions; characterized in that said first and second structural members are oriented in a substantially X-shaped configuration with an intersection of the X-shape being located at the first and second hubs , so that shear forces are transferred between said the layers of concrete without deforming the insulation layer therebetween, wherein said first and second hubs are configured to be rotatably coupled to one another in a manner that permits rotation of said first and second hubs relative to one another on an axis of rotation extending through said first and second hubs ; wherein when said first and second hubs are rotatably coupled to one another, the wall tie is shiftable between a collapsed configuration and an expanded configuration by rotating said first and second structural members relative to one another on said axis of rotation; wherein one of said first and second hubs presents a hub projection and the other of said first and second hubs presents a hub recess wherein said hub projection is received in said hub recess so as to rotatably couple the first and second structural members , a first structural member comprising a first hub and a pair of first extension members coupled to said first hub such that the first extension members extend outwardly from the first hub in generally opposite directions; a second structural member comprising a second hub and a pair of second extension members coupled to the second hub , such that the second extension members extend outwardly from the second hub in generally opposite directions; said first and second structural members are oriented in a substantially X-shaped configuration with an intersection of the X-shape being located at the first and second hubs , so that shear forces are transferred between said the layers of concrete without deforming the insulation layer therebetween, wherein said first and second hubs are configured to be rotatably coupled to one another in a manner that permits rotation of said first and second hubs relative to one another on an axis of rotation extending through said first and second hubs ; wherein when said first and second hubs are rotatably coupled to one another, the wall tie is shiftable between a collapsed configuration and an expanded configuration by rotating said first and second structural members relative to one another on said axis of rotation; wherein one of said first and second hubs presents a hub projection and the other of said first and second hubs presents a hub recess wherein said hub projection is received in said hub recess so as to rotatably couple the first and second structural members , <EOS>