A fastener system for use to assemble a pet barrier. The fastener system includes a body and a mountable member that is configured to attach two adjacent overlapping wire panels together to erect a pet barrier. Vertical grooves and horizontal grooves are disposed along the periphery of the interior surface of the body. The detents formed within the vertical grooves assist in retaining the vertical wire rods of the distal wire panel so that the body can hang onto the back side of the distal wire panel without the user having to hold it in place which facilitates the assembly of the pet barrier with only a single user. Thus, the fastener system allows a single user to assemble the pet barrier without the assistance of another person.
