Our lazy-back seat hardware kit includes all irons and fasteners needed to outfit a wagon or buckboard spring seat: a) hand-forged arm rests-pair b) back rest irons-pair c) seat corners-pair d) wagon seat hangers-set of 4.available as complete set of components (fasteners included) or specific hardware components (no fasteners).. Reproduction buckboard and authentic working wagon bench seat. plans & hardware kits available. use on a working wagon or as a side bench seat.. Woodworking plans & hardware / buckboard wagon seats; buckboard wagon seats. reproduction wagon seats, buggy seats, authentic wagon seats. complete seats or hardware kits. use them as a bench or build a working wagon seat. view as grid list..