Abstract: An assembly for supporting trellis wires on a typical metal post includes a wire clip having opposed trellis wire support arms, each comprised of a portion of the wire extending laterally and including a distal portion bent back over the lateral portion to define an acute angle therewith. A medial portion joining the two wire support arms consists of a V-shaped configuration extending in a lateral plane. The apex of the V shape impinges on one edge of the cross-web of the post, and one leg of the V extends between two fence post spines. A cam over wire lock secures the wire clip to the post, and is comprised of a web having tapered opposed ends. A hole is disposed in one end of the web, and an R-shaped camming slot is formed in a second, opposed end of the wire lock. One end of the trellis wire support clip is passed through the hole in the cam over wire lock, and the wire lock is positioned to extend between the opposed wire support arms.