A connector assembly connects two rails to a T-post. The connector assembly includes a first and second connector configured to receive the rails, and a mounting member attached to the T-post for pivotally mounting the first and second connectors to the T-post about a plurality of axes. The connector assembly includes a locking mechanism for interlocking the first and second connector with the mounting member. The connector assembly also includes a lock for securing the mounting member to the T-post.