Part Number: 12338225-1 (Screw cap) Part Number: 12338226 (Hardware) Part Number: 12338226-1 (Spacer plate) Part Number: 12338226-2 (Component) Part Number: 12338229 (Bracket) Part Number: 12338230 (Frame section) Part Number: 12338240 (Bracket) Part Number: 12338240-1 (Arm) Part Number: 12338241 (Hardware) Part Number: 12338242 (Bracket) Part Number: 12338245 (Bracket) Part Number: 12338246 (Hardware) Part Number: 12338246A (Rail assembly,frame) Part Number: 12338246B (Rail assembly,frame)