Slotted standard hardware with straight faceout series such as YD-12 (1-1/2" x 1/2" x 12" straight arm). The lengths of the faceout are optionals from 3" up to 14", depends on your requests.
All sorts of faceout and shelf brackets are available as well for slotted standards hardware which is quick and easy way to add adjustable shelving, hangrail and faceout to the wall. Choose either 1/2" slots, on center or 1" slots, 2" on center. Heavy Duty standards are available as well.